No Way Out is a 1987 American neo-noir action thriller film directed by Roger Donaldson and starring Kevin Costner, Gene Hackman, Will Patton, and Sean Young. Howard Duff, George Dzundza, Jason Bernard, Fred Thompson, and Iman appear in supporting roles. The film is based on the 1946 novel The Big Clock by Kenneth Fearing, previously filmed as The Big Clock (1948) and Police Python 357 (1976).

Mary Sean Young is an American actress. She is particularly known for working in sci-fi films, although she has performed roles in a variety of genres.