When Romola Garai first went to the audition for this film, the director turned her away because she was looking too 'rough'. The actress came back again, all dressed up, and ended up winning the role of Angel.
The outdoor scenes were shot in bitterly cold weather. The camera would freeze after two minutes of shooting, and had to be taken inside and warmed up with hot towels before taken outside again. The actors did not mind this as they too could warm up between takes.