Glenn Miller - Chattanooga Choo Choo - Sun Valley Serenade (1941) HQ

Sun Valley Serenade is the first of the only two movies featuring The Glenn Miller Orchestra (the other is 1942's Orchestra Wives). Besides "Chattanooga Choo Choo", other Glenn Miller tunes in the film are "Moonlight Serenade", "It Happened in Sun Valley", "I Know Why (and So Do You)", and "In the Mood".