Yesterday's Enemy is a 1959 Hammer Films British war film in MegaScope directed by Val Guest and starring Stanley Baker, Guy Rolfe, Leo McKern and Gordon Jackson set in the Burma Campaign during World War II. It is based on a 1958 BBC teleplay by Peter R. Newman, who turned it into a three-act play in 1960. The TV play was reportedly based on a war crime perpetrated by a British army captain in Burma in 1942. Gordon Jackson repeated his role from the BBC teleplay as Sgt. Ian McKenzie.