Long Strange Trip is a documentary film about the rock band the Grateful Dead. It premiered on January 23, 2017, at the Sundance Film Festival. It had a one-night only nationwide screening on May 25, 2017, and a week-long limited theatrical release in New York and Los Angeles starting on May 26, 2017. The film is available for streaming on Amazon Video, starting on June 2, 2017.

Long Strange Trip was directed by Amir Bar-Lev, and has a running time of almost four hours. Martin Scorsese was one of the executive producers. Justin Kreutzmann, the son of Grateful Dead drummer Bill Kreutzmann, was one of the producers.

Owen Gleiberman wrote in Variety, "At three hours and 58 minutes, it has the sprawl and generosity of a good Dead show, yet there’s nothing indulgent about it – it's an ardent piece of documentary classicism.... Deadheads will drink it in and debate it, poring over every detail it works in and leaves out, yet the ultimate recommendation I can give the movie is this: I'm one of those people who can't stand the Grateful Dead... yet I found Long Strange Trip enthralling. For the first time, it made me see, and feel, and understand the slovenly glory of what they were up to, even if my ears still process their music as monotonous roots-rock wallpaper."

Jordan Hoffman wrote in Vanity Fair, "The film's first half is a typical, though very well-polished rock doc: getting the band together, how they found their sound, their struggles and successes. After intermission, the narrative goes to unexpected and extremely emotional places: an examination of intense public adoration and the burdens of fame. For lack of a better term, it becomes a real movie.... But I do think that Bar-Lev has done the impossible: his film will make those who normally scoff at those patchouli-smelling ersatz flower children tap their feet, maybe even join them for a dance."

In the Los Angeles Times, Robin Abcarian said, "I can’t imagine that anyone will walk away from Long Strange Trip, Amir Bar-Lev’s remarkable four-hour documentary about the Grateful Dead, without a newfound appreciation for the band’s music and its place in American popular culture."

The documentary's soundtrack album Long Strange Trip contains songs compiled from various live and studio recordings by the band, many of which had been previously released. There are two versions of the album – one with two CDs, and another, available only from Amazon.com, with three CDs. It was released on May 26, 2017.

Critical reception Stephen Thomas Erlewine wrote on AllMusic, "Like the film, the Long Strange Trip soundtrack skips entire portions of the Dead's history because it focuses on the bigger picture. Some eras are soft-peddled and some classic songs are missing but by threading in studio cuts with the live tracks, this gives a good idea of everything the Grateful Dead did and why they matter.

Long Strange Trip 2017 Movie - A look at the history of the Grateful Dead explores everything from their origins in early '60s San Francisco to their devoted fanbase to their long-term impact on rock music. The film includes concert footage and rare live recordings. Directed by Amir Bar-Lev.