Factual error: Owen's phone is a Nokia 3300 which is one the phones which are designed to be wider rather than taller (like an N-Gage). Throughout the film when Owen speaks on the phone he holds it the wrong way around. He holds it to his right ear with the rounded edge of the phone pointing upwards to the top of his head. Holding it this way would mean he'd have the microphone to his ear and be speaking into the speaker. I noticed this because I have the same phone, obviously the actor was not sure which end was which and guessed, getting it wrong. I noticed this during the scene where he phones the girl that got stood up at her dance.