Character mistake: When Sue Ellen first meets Rose (who says she's looking for Carolyn), Sue Ellen says Carolyn will be right back. Carolyn simply got up and left after a brief rude chat with Sue Ellen and never said anything about being "right back." Sue Ellen couldn't have known how long Carolyn would be gone for.
Factual error: When Sue Ellen is shown commuting on the 405 freeway during heavy traffic, she is heading to work, indicating morning - yet the angle of the sun and shadows show it is late afternoon.
Audio problem: When Mrs. Sturak interrupts Zack and Cynthia's car date, she switches her cane to her other hand and opens the door by the window to let Cynthia out. Neither one of her hands touches the door handle, but you can hear the door handle sound.