When Ginger, Jasmine, Chilli and Eddie are at the clams restaurant, Eddie asks Jasmine what would she be if she had finished her education. She answers: "an anthropologist". Eddie ignorantly asks: Really, digging up fossils?" Jasmine replies mockingly: "That's an archeologist". She is wrong. The correct answer would be "That's a paleontologist", the right science that studies fossils. Jasmine shows that she as is "imperfect" and "ignorant" as those she belittles.
When we see Ginger and Al walking along the beach promenade the morning after the party, Ginger has a white handbag. She was carrying the pricey yellow Fendi (purchased for her by Jasmine in NYC) when she was at the party and she and Al have obviously been out all night.
When Jasmine is taking her nephews out to Chuck E. Cheese Pizza, she jokes and tells them she doubts her sister is on a date at Chuck E. Cheese. There are no Chuck E. Cheese restaurants in San Francisco.
When the limo arrives at an intersection and a bicyclist crosses in front of the limo, the camera pulls back to reveal that the light is green to cross traffic but the limo drives through the red light. Considering this is a closed set with extras and controlled traffic, obviously the director didn't care about red lights.