Uncertain Glory is a 1944 American World War II crime drama film,[3] directed by Raoul Walsh and starring Errol Flynn and Paul Lukas.

[6] The title is a reference to a line from Shakespeare's play Two Gentlemen of Verona (Act 1, Scene 3): "O, how this spring of love resembleth/ The uncertain glory of an April day,/ Which now shows all the beauty of the sun,/ And by and by a cloud takes all away!

Their trip back to Paris is delayed by a bridge, blown up by an unknown saboteur the night before while carrying a German troop train.

Picard - now going by the alias Jean Emil Dupont - ducks into a shop, where he is immediately attracted to the woman behind the counter, Marianne.

To clear the path, Bonet notifies his superiors in Paris that he shot Picard when he attempted to escape, with his body lost in a river.

Noting two strangers in town who had not reported to submit their identification papers, its commander leads a detail to Bonet's hotel room, bringing a captured suspect.

Released, the "team" of Bonet and Dupont discover the fugitive to be Major Andre Varenne of the Free French Army, and aid him in his air evacuation to England.

The next morning Dupont leaves a flu-ridden Bonet behind to rendezvous with Maryanne after Sunday mass, planning to use a picnic with her to find an unguarded way out of town.

[8] This was the first film produced under Flynn's new contract with Warners which allowed him a say in the choice of vehicle, director and cast, plus a portion of the profits.

[15] During filming it was announced Warners would rush release plans on this and Passage to Marseilles, another drama set in occupied France.

While shooting there, labor-strapped farm hands insisted the unit had to pick grapes with them before they would allow filming to take place.

[17] A contemporary The Washington Post reviewer wrote "Flynn has never given a more restrained, earnest and believable portrayal ... there is guile, sly humour, an appealing bravado, grim rebellion, gentleness, charm, in his drawing of a character that is alternately enigmatic and transparent.