The Bodyguard is a 1992 American romantic thriller film directed by  Mick Jackson, written by Lawrence Kasdan, and starring Kevin Costner and Whitney Houston. Costner stars as a former Secret Service agent-turned-bodyguard who is hired to protect Houston's character, a music star, from an unknown stalker. Kasdan wrote the film in the mid 1970s, originally as a vehicle for Ryan O'Neal and Diana Ross.