Sunny Side Up (stylized on-screen as Sunnyside Up) is a 1929 American pre-Code Fox Movietone musical film starring Janet Gaynor and Charles Farrell, with original songs, story, and dialogue by B. G. DeSylva, Lew Brown and Ray Henderson.

[2][3] Gaynor performs a singing and dancing version of the song "(Keep Your) Sunny Side Up" for a crowd of her neighbors, complete with top hat and cane.

Later in the film, a dance sequence for the song "Turn on the Heat", including scantily clad and gyrating island women enticing bananas on trees to abruptly grow and stiffen, occurs without Gaynor's participation.

An early popular recording was by Paul Whiteman and His Orchestra on October 16, 1929 with a vocal group including Bing Crosby[8] and this reached the charts in 1929.

[12] A 1929 recording of the song by Johnny Hamp's Kentucky Serenaders plays during the closing credits of the 1973 film Paper Moon.