Other mistake: José accidentally drops a cake containing hidden explosives. Pat accidentally drops a cake containing hidden explosives. Both scenes use the same close-up footage of an explosion. (00:00:23 - 00:01:05)
Continuity mistake: Gene is chasing a stagecoach robber. Both men are on horseback and shooting at each other. When the stagecoach robber runs out of bullets, he puts his gun back in the holster. In the next shot, he again puts the gun back in the holster. (00:09:30)
Revealing mistake: As Pat Buttram enters the office of the Bugle newspaper, he casts a shadow on the painted backdrop of the buildings across the street. (00:19:30)
Continuity mistake: Gene is chasing a smuggler who is driving a horse and buggy with an unwitting Pat Buttram by his side. The smuggler drives past a roadside post marking the U.S.-Mexico border. In the immediate long shot of Gene chasing him, the post has disappeared. (00:22:05)