Former President Joe Biden commuted the life sentence of Indigenous activist Leonard Peltier, who had been imprisoned for nearly 50 years, on Jan. 20.

Jesse Short Bull and David France's documentary tells Peltier's story all the way through President Joe Biden's commutation.

American Indian activist Leonard Peltier speaks during a 1999 interview at the U.S. Penitentiary at Leavenworth, Kan. President Joe Biden commuted to home confinement Peltier's life sentence after he spent most of his life in prison for the killing of two FBI agents in South Dakota in 1975.

The outgoing Biden administration has released Leonard Peltier from prison. Numerous activists and tribal officials have requested the release of Peltier, whom they believe to be innocent of killing two FBI agents in 1975.

It's the sort of twist no screenwriter would dare invent: "Free Leonard Peltier," a persuasively well-researched and often infuriating documentary about the American Indian Movement activist convicted nearly a half-century ago of killing two FBI agents,

Sundance: Jesse Short Bull and David France's documentary about the American Indian Movement member who was imprisoned since 1976 for killing two FBI agents is a disappointment.