The Glenn Miller Story (1954)

Biopic of the American band-leader, directed by Anthony Mann. 

In the title role, James Stewart seemingly makes very little effort to become the character, instead relying on his usual tics and mannerisms to carry the plot along. 

As a biopic, it’s weak. As a story in its own right, it’s reasonably entertaining but oddly childish. You learn surprisingly little about Miller’s life and career.