George Cukor's Keeper of the Flame was completely unknown to me, and I was very pleased by the surprise. Early on in the film it occurred to me that it was a WW2 propaganda film inspired by the real-life stories of Lindbergh and Butler, and so I had a strong sense of how the plot was likely to unfold. But instead of diminishing my interest, that made me even more attentive. Tracy and Hepburn are great, the cinematography sets up a somber and mysterious mood, and there are even a few innovative, "artistic" camera shots. The film's second half is not as good as the first, probably because we are let in on the "secrets" of the story a bit too soon.