the movie elf had a song called baby its cold outside,what other movie was it in?

Answer 1

1949 movie "Neptune's Daughter"

Words and music by Frank Loesser, 1949
Introduced in the film Neptune's Daughter by Ricardo Montalban with Esther Williams, Red Skelton and Betty Garrett, 1949
Won Best Song Academy Award for 1949
Popularized by Dinah Shore and Buddy Clark
Recorded by Johnny Mercer and Margaret Whiting

More info
http://en.wikipedia.org/wiki/Baby,_It's_Cold_Outside_(song)

Answer 2

There are two versions of the song in Elf, one by Leon Redbone and Zooey Deschanel; the other by Will Ferrell and Zooey Deschanel.

The song also is featured in the movie Neptune's Daughter, sung by Esther Williams and Ricardo Montalban. In fact, the version in Neptune's Daughter was ranked by the American Film Institute as one of the top 100 movie songs of all time.