Buddy's Lost World is a 1935 Warner Bros. Looney Tunes cartoon, directed by Jack King. The short was released on May 18, 1935, and stars Buddy, the second star of the series. The title is likely a reference to the 1925 silent film The Lost World, itself based upon the 1912 novel by Sir Arthur Conan Doyle. The music playing throughout much of the cartoon is "Lullaby of Broadway", played in a minor key.