Factual error: Sug Knight drives under the Monorail tracks. These tracks were not built until after 2002. Tupac was killed in 1996. (02:12:00)
Audio problem: During Beca's performance of Freedom, she is singing with Cynthia Rose. During the little chorus pre-verse (before they put their hands in the middle), you can hear Beca's voice singing the lyrics but Anna Kendrick's microphone is nowhere near her mouth. Her lips don't even match it.
Continuity mistake: Izzy gets out of the car of her one night stand and lights up a cigarette. She begins to type on her phone, phone in the left, cig in the right. A jogger bumps her and in the next shot she coughs on purpose to try and make her put the cigarette out. From now on, Izzy's phone is in her right hand and her cigarette in her left hand. (00:08:05)