Pain is good.....

This appeared In the movie "World Trade Centre"
However, this quote was actually orignated from the movie "G.I. Jane"(1997) (starred Demi Moore)

the whole scene was like this:

Between despairing and raging, John and Willessentially talk each other into staying awake. “You know that movie GI Jane?” asks Will. Yeah, says John, “with what’s-her-name.” Will reminds him of “that part where the drill sergeant says, ‘Pain is good, pain is your friend,’” because when you feel it, “You know you’re alive.”

It's from the movie World Trade Center.(2006) starring nicolas cage,michael pena,maggie gyllenhaal....