50 Stacks (2005)

In order to become Big Time Hustlers and better their social life with the ladies, two buddies borrow $50,000 or "50 stacks" from the neighborhood loan shark/boxing promoter, Real Deal. But when the boys get ripped off on their drug buy, they have no way to repay the loan when it comes due in seven days. To get out of debt, Real Deal makes them an offer they can't refuse. One of them must survive three rounds of boxing with "Damaging Dynamite" but if he loses, they'll have to pay double.