Two of boxing's greatest heavyweights descended on New York on Thursday night for a screening of new documentary Champs. Featuring former world champions Mike Tyson, Evander Holyfield and Bernard Hopkins, the film examines the lives of the three men in and outside of the ring. And the two giants of the sport made a special appearance at Village East Cinema. Evander Holyfield and Mike Tyson attend the Champs New York Screening with director Bert Marcus . Tyson and Holyfield pose for photographs almost 20 years after their infamous rematch . Directed by Bert Marcus, Champs focuses on the aforementioned trio's rise from poverty to the top of the sport. Tyson and Holyfield, of course, twice met in the ring and have rebuilt their relationship since their controversial rematch in 1997 when Tyson took a chunk out of his opponent's ear. Both are long retired but 50-year-old Hopkins has yet to announce whether he plans to continue after losing to hard-hitting Russian Sergey Kovalev last November. Tyson pretends to take a chunk out of the director's ear while Holyfield poses at a previous event . Tyson bites a chunk out of Holyfield's ear in their heavyweight rematch in 1997 . Tyson, meanwhile, has admitted that UFC champion Ronda Rousey might 'kick his ass'. Rousey defended her bantamweight title last month when she submitted Cat Zingano in just 14 seconds. 'S***, Ronda Rousey might kick my ass,' Tyson told the Huffington Post. 'That 14 seconds the last fight, s*** man, you got to take that seriously. 'She's marketed herself, and not necessarily from a publicist's perspective. She put in the work, too. She's putting these people to bed, she's tapping them out, she's doing the 14-second thing.'
Mike Tyson and Evander Holyfield were at the screening of Champs . The documentary features them and Bernard Hopkins . All three are among the best world champions ever in the sport . The documentary charts their rise from poverty . CLICK HERE for all the latest boxing news .