There is something undeniably appealing about the premise of “The End of Oak Street,” particularly for anyone who grew up on the big adventure movies of the 1980s. A seemingly ordinary suburban family wakes up to discover that their quiet neighborhood has been ripped from the world they know and transported somewhere very different. The electricity is gone. The water has stopped running. Something is lurking beyond the tree line. And before long, the Platt family discovers they are sharing their once peaceful corner of suburbia with dinosaurs.

Written and directed by David Robert Mitchell, “The End of Oak Street” stars Anne Hathaway and Ewan McGregor as Denise and Greg Platt, a married couple already struggling to find their way back to each other before their domestic problems become considerably less important. Maisy Stella and Christian Convery play their children, Audrey and Brian. J.J. Abrams produces through Bad Robot, while Mitchell reunites with cinematographer Michael Gioulakis, who previously shot “It Follows” and “Under the Silver Lake.” Michael Giacchino provides the score.

Set in 1982, “The End of Oak Street” initially feels tailor-made for someone like me who grew up in the decade and still has an enormous affection for the movies that defined it. Mitchell has said the idea originated with an image that came to him while walking through his neighborhood: a dinosaur digging through the trash in an otherwise mundane middle-class setting. That collision of the ordinary and impossible is immediately intriguing, but it is the film’s commitment to the period that really sells the premise early on. The production found an Atlanta neighborhood largely unchanged since the 1960s and filled its homes with period-specific furniture, appliances, photographs and household objects. Thankfully, this isn’t the exaggerated, neon-soaked version of the 1980s that Hollywood often defaults to. It actually looks and feels lived in.

That extends beyond the production design. Gioulakis gives the suburban setting a visual texture that recalls the character-driven adventure films of the late ’70s and early ’80s, while Giacchino’s score helps establish the sense that we are watching a lost summer movie from that period. Hathaway has specifically cited “Poltergeist” and the Amblin films of the era as reference points, and you can feel those influences in the film’s visual and audio palette. For its opening stretch, “The End of Oak Street” had me. It was exactly the kind of nostalgic setup I wanted to disappear into for a couple of hours.

Which makes it all the more frustrating that Mitchell never seems able to decide what movie he actually wants to make.

“The End of Oak Street” is at various points an ’80s nostalgia piece, a marriage drama about rediscovering love through tragedy, a family adventure, a campy comedy, a science-fiction mystery, a creature feature and a dinosaur action movie. Any combination of those ingredients could work. Mitchell seems to want all of them at once, frequently shifting tone before the previous one has had time to settle. The result is less a genre mashup than a large pile of dinosaur poop. And yes, there are plenty of dinosaurs.

The visual effects team at Industrial Light & Magic reportedly began each creature with paleontological research, digitally building them from skeleton to muscle, fat, skin, scales and feathers. The filmmakers even used modern birds, including emus, ostriches and baby chicks, as references for movement and coloration. That attention to detail sounds impressive on paper. Unfortunately, it rarely translates to the screen. For a movie being sold partly on the thrill of prehistoric creatures invading an ordinary American neighborhood, the dinosaurs are surprisingly unconvincing. Too often they look unmistakably computer generated, lacking both physical weight and a convincing sense of scale.

Steven Spielberg’s “Jurassic Park” understood that the awe of seeing a dinosaur was almost as important as the terror of being chased by one. More than three decades later, “The End of Oak Street” struggles to give its creatures that same magnificence. They are obstacles rather than wonders. Mitchell also has trouble generating sustained suspense around them. The first few appearances carry an element of uncertainty because neither the Platts nor the audience understands what is happening, but the film repeatedly returns to variations on the same trick: something rustles nearby, the characters stare apprehensively toward the bushes and another creature emerges. Eventually, anticipation gives way to familiarity. By the final stretch, another dinosaur appearing from the foliage inspires less dread than recognition.

There are flashes of the movie “The End of Oak Street” might have been, and curiously, many of its best moments come when Mitchell stops trying so hard to make everything meaningful. One particularly funny sequence has Denise photographing Greg in front of two dinosaurs engaged in an activity we don’t typically see prehistoric creatures doing in summer blockbusters. Hathaway’s reaction and McGregor’s willingness to play the absurdity make the scene genuinely funny. For a few minutes, the movie embraces the inherent ridiculousness of its premise. If Mitchell had committed more fully to that campy, nostalgic adventure tone, “The End of Oak Street” might have been a much more distinctive experience. Instead, even a scene that works feels like it wandered in from another movie.

(L-r) EWAN McGREGOR as Greg Platt, CHRISTIAN CONVERY as Brian Platt, MAISY STELLA as Audrey Platt and ANNE HATAHAWAY as Denise Platt in “The End of Oak Street,” a Warner Bros. Pictures Release; Photo Courtesy Warner Bros. Pictures

That problem extends to Hathaway and McGregor. Hathaway continues to demonstrate just how much of a chameleon she can be, particularly amid an unusually varied 2026 slate. Here she plays Denise as a woman beginning to question the life she has built, secretly writing while wondering whether being a wife and mother has left enough room for her to discover who she is. McGregor’s Greg is wrestling with a different kind of failure. Having lost his job, he hides the truth from his family while taking odd jobs to maintain the illusion that he can still provide for them. The screenplay clearly intends their extraordinary circumstances to force the couple to confront the ordinary fractures in their marriage.

The problem is that Hathaway and McGregor frequently seem as though they are starring in different films. Hathaway leans into the heightened strangeness while McGregor often feels rooted in a more earnest family drama. Both are accomplished enough to find individual moments that work, but they rarely seem to be operating on precisely the same wavelength. That is less an indictment of either performance than another symptom of the movie’s larger tonal confusion.

The younger Platts fare somewhat better within the mechanics of the story. Audrey’s interest in astronomy and science becomes increasingly important as the family tries to determine what has happened to Oak Street, but this leads to another of the screenplay’s major frustrations. The family’s eventual understanding of the scientific phenomenon arrives with surprising ease. Rather than making the discovery part of the adventure and allowing the audience to piece together the mystery alongside them, the movie suddenly needs its characters to understand what is happening, and so they do. A potentially fascinating mystery becomes exposition.

Perhaps most disappointing is that the ingredients for a much better movie are everywhere. The production design convincingly creates a lived-in 1982. Gioulakis and Giacchino establish a visual and musical language that taps directly into the films Mitchell is referencing. The central conceit of prehistoric creatures wandering through backyards, swimming pools and suburban streets remains clever. Hathaway and McGregor are actors capable of elevating almost anything put in front of them. There are even individual action and comedy sequences that hint at the weird, playful summer movie this could have been.

But “The End of Oak Street” keeps fighting itself. Mitchell has described his vision as a grounded dramatic film that eventually “goes insane,” while Abrams characterized the approach as almost an independent film mutating into a big studio movie. That description is remarkably accurate. The problem is that the mutation never quite takes. Instead of the genres complementing one another, they compete for control of the movie, leaving its strongest ideas stranded somewhere between the intimate family drama Mitchell begins with and the dinosaur spectacle he eventually wants to deliver.

That would be easier to forgive during a quieter stretch of the summer movie season. Unfortunately, “The End of Oak Street” arrives in theaters while Christopher Nolan’s “The Odyssey” and “Spider-Man: Brand New Day” are still providing audiences with the kind of large-scale theatrical spectacle that makes a trip to the movies feel essential. Against that competition, Mitchell’s dinosaur adventure looks considerably smaller than it should.

There is an enjoyable movie buried somewhere on Oak Street. I suspect it is the stranger, funnier and more unapologetically campy one that occasionally escapes from the bushes. As someone who grew up in the ’80s, I was more than ready to fall for the nostalgia, the suburban setting, Giacchino’s score and the promise of an old-fashioned summer adventure. The setup is almost perfect. Unfortunately, like its characters, “The End of Oak Street” spends too much time trying to figure out exactly where it is.

Final Grade: C-