Murder in Three Acts is a British-American made-for-television mystery film of 1986 produced by Warner Bros. Television, featuring Peter Ustinov as Agatha Christie's detective Hercule Poirot. Directed by Gary Nelson, it co-starred Jonathan Cecil as Hastings, Tony Curtis, and Emma Samms.

Sir Peter Alexander Ustinov was a British actor, filmmaker, and writer. An internationally known raconteur, he was a fixture on television talk shows and lecture circuits for much of his career. Ustinov received numerous accolades including two Academy Awards, a BAFTA Award, three Emmy Awards, and a Grammy Award.