Where the Buffalo Roam is a 1980 American semi-biographical comedy film which loosely depicts author Hunter S. Thompson's rise to fame in the 1970s and his relationship with Chicano attorney and activist Oscar "Zeta" Acosta. The film was produced and directed by Art Linson. Bill Murray portrayed Thompson and Peter Boyle portrayed Acosta, who is referred to in the film as Carl Lazlo, Esq. A number of other names, places, and details of Thompson's life are also changed.