>> mark wahlberg: it doesn't tickle, that's for sure. >> logan: did you ever get hurt? >> wahlberg: i almost got my nose broken a couple of times. because when we shot the fights, the goal for me was always to make it as real as possible. >> logan: to that end, wahlberg got ready for the film as if he was training for a title fight. >> wahlberg: i didn't want to look like an actor who could box; i wanted to look like a boxer who could win the world title. we trained right here... >> logan: ...at his home in beverly hills. >> wahlberg: this is where we choreographed all the fights. >> logan: ...wahlberg built a boxing mecca, complete with a top-of-the-line ring. you took this seriously. >> wahlberg: we were in here eight to ten hours a day. >> logan: it was here that he brought the real brothers, micky and dicky, to help with his training. >> logan: mark trained for the role for four years, not knowing whether one frame of the film would ever be shot. "the fighter" almost didn't get made. directors and co-stars came and went. did you ever think, "you know, gosh, i'm never