Continuity mistake: The opening narration says the season is late spring, or otherwise a warm season of the year in Arizona, yet many people are wearing wool suits, coats and long-sleeved shirts during the day. At one point, the sheriff's dialogue even discloses that it is 92 degrees (and no air conditioning).
Continuity mistake: When the Beast first tears down the streets of New York, a lone police officer empties his service revolver at the beast before being eaten. A few minutes later, a group of a half dozen police officers pump their shotguns before firing at the beast - the officer who was already eaten after firing his revolver can be seen alive in the far left of the screen as one of the officers readying his shotgun.
Continuity mistake: When Sally is disturbed by the resemblance of her friend, who was recently killed and then her body was stolen from the morgue, to the wax figure of Joan of Arc, she reaches up to touch the left side of the face, but when Vincent Price turns up, she is touching the right side of her face.kh1616