Continuity mistake: When Jenny, David, Danny and Helen are driving up to the house that's for sale that David and Danny want to look at, Carey Mulligan & Dominic Cooper are in different seats in different shots. In the first shot, the camera is in the backseat, and shows Peter Sarsgard driving, and Dominic Cooper in the front passenger seat. When the car pulls up and parks, Carey Mulligan is in the front passenger seat, and Dominic Cooper is behind her in the back seat. (00:44:10)
Factual error: Jenny would not have received a letter telling her she had been successful in applying to Oxford University as shown at the end of the film. As an undergraduate she would have received a letter from one of the Oxford colleges to which she had applied informing her she had been accepted to that college.