Now, I haven't seen First Class in a while, but I think (and the final sentence of the plot summary [URL=http://www.imdb.com/title/tt1270798/synopsis]here[/URL] agrees with me) that it's Erik who breaks Emma out of prison, not the other way around. Unless you're referring to a different incident?

(If you are, and/or I'm just being an idiot, sorry, my knowledge of the early stuff is somewhat rusty. I'm better with the current/future bits than past, mainly because I've had much more exposure to it.)