Character mistake: When Massie reads the IM from Kristen, she doesn't look at the past messages. Claire didn't delete the messages from the past.
Character mistake: Massie and and her friends are talking about the ingredients to the makeup they were making. Kristin asks if they can make the makeup with peanut oil. She didn't say anything about being allergic. When Massie was late to the next makeup meeting, we learn that Massie is allergic to peanuts. Why didn't Massie say anything about being allergic?
Character mistake: In the scene at the sleepover Claire says she bumped into Chris who has 'shaggy blonde hair and blue eyes' and Massie gets mad because she likes Chris, but when we see him before and after he has brown hair and brown eyes. (00:40:00)