"Let's Go Fly a Kite" is a song from Walt Disney's 1964 film Mary Poppins, composed by Richard M. Sherman and Robert B.
[1] This song is performed at the end of the film when George Banks (played by David Tomlinson), realizes that his family is much more important than his job.
In keeping with Mr. Banks's change in character, this song was pre-recorded, and thus sung normally, by Tomlinson, rather than in his previous talk-singing in the Rex Harrison style, seen earlier in "The Life I Lead".
In this version, the scene recreates what happens at the beginning of the second book when Mary Poppins came back on the string of Michael's kite.
It is often rumoured that Walt Disney had asked his songwriters to write a song about a kite because of his two daughters.