Continuity mistake: In the scene where Marilyn arrives at the bar to see her friend Liz, as she sits down there is only a bowl of olives in front of her. A few shots later, there is now a drink in front of her as well. Never during the scene does she order a drink, or does a bartender set one down in front of her.
Continuity mistake: When filming the 'Hula Balls' commercial, the actress/host comes onstage and two 'marks'(tape lines on the floor where they are supposed to stand)are visible on the stage floor. When the actor comes out and takes his place next to her, the tape 'marks' have disappeared.