San Antonio is a 1945 American Western film starring Errol Flynn and Alexis Smith.

The film was written by W. R. Burnett and Alan Le May and directed in Technicolor by David Butler as well as uncredited Robert Florey and Raoul Walsh.

The film was nominated for 2 Academy Awards, for Best Original Song ("Some Sunday Morning") and Best Art Direction (Ted Smith, Jack McConaghy).

[4] Rustlers are running rampant in Texas, but at least one rancher, Charlie Bell, isn't pulling up stakes yet, particularly with the news that old friend Clay Hardin is en route from Mexico back home to San Antonio.

Clay arrives in town in the stagecoach chartered by Jeanne Starr, an actress from the East whose manager, Sacha, has arranged a job performing in Stuart's saloon, believing it is a legitimate venue.

Clay dismisses Charlie's suspicions that Jeanne is in cahoots with her boss and goes to meet her in her dressing room.

Clay asks the Colonel to give him the job of town marshal so he can find out who killed Charlie.

W. R. Burnett, one of the writers, said Warner Bros had the idea of getting Max Brand to write an Errol Flynn Western.

"[5] Burnett says a few months later he got a call from Jim Geller, head of Warners story department, saying they had a shooting date, Flynn and a color commitment, but Brand had come up with "a very original idea for us.

[5] (According to a later article on Brand, the author contributed to the scripts of the Flynn films Uncertain Glory, The Adventures of Don Juan and Montana before becoming a war correspondent and being killed in May 1944.

[5] In March 1944, Warners announced they would make the film from a script by Burnett with Raoul Walsh to direct.

[7] In June it was announced that Raymond Massey, who had made Santa Fe Trail with Flynn, was going to play the second male lead.

[9] By July David Butler had been assigned to direct and Paul Kelly, not Scott, was to play the villain.

[1] In 2019, an article in Filmink magazine said, "There is something anonymous about the film – none of the sequences reach the delirious excesses found in the Dodge City trilogy, for instance; it's less silly than anything in those movies but also less memorable.