>> flavin: oh, yeah.nds of dollars. >> logan: so, he's very generous. >> flavin: he is, extremely. >> logan: in dorchester, at the boys and girls club, a place where he was once banned for life... >> wahlberg: nice steal. >> logan: ...wahlberg gives his time and money to help kids, many of whom now see him as a hometown hero. what do you say to those kids when they look at you and say, "well, you didn't finish high school and look where you are?" >> wahlberg: it's my biggest regret. i feel like, if i was able to do what i did with not going to high school and getting a college degree, imagine what i could have done with a real education. i'd be running whatever studio i work for. >> logan: wahlberg feels he snuck in hollywood's back door. at the age of 40, with a movie under his belt that he considers his proudest achievement, mark wahlberg knows he made a narrow escape from life on the streets. how do you define yourself, i mean, when you look at your career and who you are? >> wahlberg: a lucky son of a