Angel was different... Though I hope we aren't just thinking that she was different because it was a real live action film instead of small cameo appearances or animated effects.
In the games, Angel was genuinely caring. In the movie, well, one film reviewer puts it best when he said how she spends the film scowling, pouting and hissing. If we are meant to like her, or at least feel sympathetic for her, then it doesn't work. But it is still fun to watch.