It Happened One Night is a 1934 Screwball comedy directed by Frank Capra, in which a pampered socialite (Claudette Colbert) tries to get out from under her father's thumb, and falls in love with a roguish reporter (Clark Gable). The plot was based on the story Night Bus by Samuel Hopkins Adams, which provided the shooting title. It Happened One Night was one of the first film romantic comedies created after the MPAA began enforcing the 1930 production code in 1934. The final title is an oddity, as the movie takes place over several nights and none is particularly key to the plot.

The film was the first to win all five major Academy Awards (Best Picture, Director, Actor, Actress, and Screenplay), a feat that would not be matched until One Flew Over the Cuckoo's Nest (1975) and later by The Silence of the Lambs (1991). In 1993, It Happened One Night was selected for preservation in the United States National Film Registry by the Library of Congress as being "culturally, historically, or aesthetically significant".

It was remade as a 1956 musical comedy, You Can't Run Away from It, starring Jack Lemmon and June Allyson.

Ellie Andrews has just tied the knot with society aviator King Westley when she is whisked away to her father's yacht and out of King's clutches. Ellie jumps ship and eventually winds up on a bus headed back to her husband. Reluctantly she must accept the help of out-of- work reporter Peter Warne. Actually, Warne doesn't give her any choice: either she sticks with him until he gets her back to her husband, or he'll blow the whistle on Ellie to her father. Either way, Peter gets what (he thinks!) he wants .... a really juicy newspaper story. Written by A.L.Beneteau

Rebellious socialite Ellie Andrews marries King Wesley but her wealthy father has it annulled. Tired of her father's control, she runs away by diving off the family yacht in Miami and heading for New York. On the bus she meets street-smart reporter Peter Warne. They end up traveling together as Warne hopes to get a great story, and Ellie needs his worldly help. Nearing New York, with their many adventures coming to an end, they find that they are reluctantly in love and afraid to admit it to each other. After she mistakenly thinks that Warne has run out on her Ellie returns to King Wesley, but for how long? Written by Gary Jackson