Viva Villa! is a 1934 American Pre-Code film starring Wallace Beery as Pancho Villa and was written by Ben Hecht, adapted from the book Viva Villa!. The film was shot on location in Mexico and directed by Jack Conway. There was uncredited assistance with the script by Howard Hawks, James Kevin McGuinness, and Howard Emmett Rogers. Hawks and William A. Wellman were also uncredited directors on the film. Wikipedia
Bugle boy: (plays the "battle charge" on the bugle, and stops)
Pancho Villa: Play some more!
Bugle boy: That is all I know.
Pancho Villa: (laughs) That's okay. That's all you'll need!