Ice is a 1970 American thriller film written, directed by and starring Robert Kramer, exploring an underground revolutionary group that carries out urban guerrilla attacks against a fictionalized fascist regime in the United States. The film intermixes these attacks with sequences explaining the philosophy of radical action and downplays melodrama, set against a backdrop of a run-down and modern New York governed by a powerful surveillance state. Robert Kramer plays a member of this group, alongside Leo Braudy as Vladimir.