Rodney Harrison is perhaps one of the most polarizing figures ever to play in the NFL. Some would call Harrison's style of play "dirty," but there's a side to this enforcer on the football field that you probably don't know. NFL Films producer James Weiner joins NESN.com's Michaela Vernava to discuss the making of "Rodney Harrison: A Football Life" which premieres at 9 p.m. ET Friday on NFL Network.