In the party scene, after Dino runs across the table and makes a mess, Wilma's mother's hair has some debris in it. She wipes it off with her hand, then in the next scene a piece is back, she picks it off, and in the next scene, more debris is back in her hair.
In the first Flintstones movie, Fred stated that he met Wilma after she cleaned him off in an eating contest. In this movie, they met at a carnival after a date swap when Fred met Betty at a fast food restaurant, and Betty introduced Wilma as a date for Barney.
After Wilma takes a short walk and is stopped by Chip, the elevator door closes, then reopens when a lady pushes a button, a few seconds later, someone else pushes the button and it opens, not taking any time to move from the floor it would have gone to, and there's no one inside.