Real-life stories don’t get much more improbable, inspirational, and death-defying than that of French high-wire artist Philppe Petit, who on August 7, 1974 strung a cable (illegally, with the help of accomplices) between the two towers of the then-unfinished World Trade Center and danced for 45 minutes among the clouds for onlookers over 100 stories below. James Marsh’s 2008 documentary Man On Wire beautifully recounts the feat, which took an inordinate amount of preparation (training, trespassing, reconnaissance, recruiting) to pull off. Petit and his team’s accomplishment is the stuff of legend, and Marsh’s film is one of my very favorites.

A narrative version of the tale was inevitable, and it now arrives in the form of Robert Zemeckis‘ The Walk, starring Joseph Gordon-Levitt as the uncontrollably charismatic Petit. The movie has its merits: the final 30 minutes, in which we see Gordon-Levitt’s Petit preen and twirl in the sky as aggravated police officers try to snatch him from either end of the cable, is an exhilarating piece of filmmaking that you won’t find in Marsh’s documentary and must be watched in a theater, in 3-D. It’s a high note to end on, but the road to get there is so unremarkable and stale that it makes it difficult to exalt the movie as a whole.

The most wonderful thing about Man On Wire was Petit, who told his own story not just with his words, but with his whole body. Zemeckis and co-writer Christopher Browne chose to grab for that same magic by having Gordon-Levitt narrate the film, addressing the audience directly, from atop the Statue of Liberty. They find mixed success: the symbolism of the fantastical New York City image has a nice poetry to it (the statue’s history isn’t insignificant here), but Gordon-Levitt doesn’t come close enough to capturing the vigor and wild ambition of the real-life Petit. To be fair, I’m not sure any actor could.

Most of Gordon-Levitt’s work has been good-to-excellent, but this is one role he just doesn’t seem to fit into completely. His attempt at a French accent is valiant but shoddy, and while he’s certainly energetic and wide-eyed, he doesn’t exude the same raw passion of his real-life counterpart. It’s a good performance and serves the story well, but he’s capable of much, much more.

In flashbacks inspired by the greatest hits of the French New Wave, we find Petit wowing small crowds as a Parisienne street performer. A magic trick involving a sizeable jawbreaker sends him to the dentist’s office, where his life work begins: he sees a picture of the under-construction World Trade Center and in an instant devotes his life to them. He’s got a lover, Annie (Charlotte Le Bon), and some friends who are willing to help him on his quest, but he seeks additional guidance from a master wire-walker, played by Ben Kingsley.

The movie’s most unbelievable elements—the eponymous walk, the heist-like operation of infiltrating the buildings, Petit’s zany personality—are all true to life. The story is that extraordinary. But Zemeckis’ approach, while inspired, actually dulls the spectacle of the lead-up to the final act. Visually, he views the world through Petit’s child-like eyes, depicting France in a heightened, nostalgic state. Once he gets to New York City, the impossibility of Petit’s dream dawns on him and the movie goes gray in a hurry. It’s a poetic device, but there are flaws in execution. In France, everything feels too Hollywood-y and fluffy, and in New York City, things get a little too drab and depressing. The balance in tone feels off, and a few tweaks in calibration may have evened things out and made for a smoother transition.

If you buy your movie ticket for The Walk, make sure you shell out the extra dough for those infernal 3-D glasses. In this case, they make the movie. The grand finale is absolutely terrifying, especially with the added depth of the 3-D effect. When Gordon-Levitt takes his first step onto that cable hung thousands of feet in the air and the camera points straight down at the tiny streets and buildings below, it’s an incredible feeling. It’s not as touching a moment as you’ll find in Man On Wire or Petit’s written account of the stunt, To Reach the Clouds, but you can’t deny the view.

Robert Zemeckis‘ high-wire adaptation of Philippe Petit’s memoir To Reach the Clouds (made famous by the stunning 2008 documentary Man on Wire) will open the 53rd New York Film Festival, held at the Lincoln Center’s Alice Tully Hall. The Walk, which stars Joseph Gordon Levitt as Petit, is only the second 3D feature ever selected to open NYFF following 2012’s selection of Ang Lee’s Life of Pi. The film, whose strong New York ties should seem obvious, details Petit’s daring high-wire walk between the Twin Towers in 1974. This will be Zemeckis’ second straight movie to debut at this festival, following Flight‘s closing night selection in 2012.

New York Film Festival Director and Selection Committee Chair Kent Jones commented in a press release, “The Walk is surprising in so many ways. First of all, it plays like a classic heist movie in the tradition of The Asphalt Jungle or Bob le Flambeur—the planning, the rehearsing, the execution, the last-minute problems—but here it’s not money that’s stolen but access to the world’s tallest buildings. It’s also an astonishing re-creation of lower Manhattan in the ’70s. And then, it becomes something quite rare, rich, mysterious… and throughout it all, you’re on the edge of your seat.”

Robert Zemeckis added: “I am extremely honored and grateful that our film has been selected to open the 53rd New York Film Festival. The Walk is a New York story, so I am delighted to be presenting the film to New York audiences first. My hope is that festival audiences will be immersed in the spectacle, but also to be enraptured by the celebration of a passionate artist who helped give the wonderful towers a soul.”

The 53rd New York Film Festival is a 17-day event that runs from September 25th until October 11th The Walk is the fourth consecutive American-produced film to open the New York Film Festival, following Life of Pi (2012), Captain Phillips (2013), and Gone Girl (2014). The Walk will open wide in 3D and IMAX 3D on October 2nd.

Check out the heart-stopping trailer for The Walk: