Jacknife is a 1989 American film directed by David Jones and starring Robert De Niro, Ed Harris and Kathy Baker. The film focuses on a complex tension between people in a close family relationship. Stephen Metcalfe, on whose play Strange Snow (1982) the film is based, wrote the screenplay. Harris was nominated for a Golden Globe Award for his performance.

Plot

Joseph Megessey (known to most as "Megs") is a Vietnam War veteran who has post-traumatic stress syndrome, and who is having trouble integrating with society. He finds Dave, a fellow veteran who has become an alcoholic, and attempts to bring him out of his depression by encouraging him to enjoy life again, as well as urging him to face some of his darker memories.