Complex sentence: After the success of the initial recording, Haggart and Bauduc performed this song frequently for the rest of their careers, inlcuding in several films, most notably in 1941's "Let's Make Music" and 1943's "Reveille with Beverly".
Split into simpler sentences: After the success of the initial recording, they performed this song frequently for the rest of their careers. They performed the song in several films, most notably in 1941's "Let's Make Music" and 1943's "Reveille with Beverly".