Chandrodayam (transl. Moonrise) is a 1966 Indian Tamil-language romantic comedy film directed by K. Shankar. The film stars M. G. Ramachandran and J. Jayalalithaa, with M. N. Nambiar and Nagesh in supporting roles. It was inspired by the 1934 American film It Happened One Night, and released on 27 May 1966.

It Happened One Night is a 1934 American pre-Code romantic comedy film with elements of screwball comedy directed and co-produced by Frank Capra, in collaboration with Harry Cohn, in which a pampered socialite tries to get out from under her father's thumb and falls in love with a roguish reporter. The screenplay by Robert Riskin is based on the August 1933 short story "Night Bus" by Samuel Hopkins Adams, which provided the shooting title. Classified as a "pre-Code" production, the film is among the last romantic comedies created before the MPPDA began rigidly enforcing the 1930 Motion Picture Production Code in July 1934. It Happened One Night was released just four months prior to that enforcement.