Probably the most quoted line from any film

Even though many people quote this line, most don't even know what it is from. This film will go down as one of the great epics in modern cinematic history, and mainly for this line:

"I could have had class, I could have been a contender, I could have been somebody instead of a bum... which is what I am."

This is the last scene in the film, and it shows Jake's realisation of the fact that he threw away his career.