Donnie Yen and Mike Tyson have teamed up for a new kung fu movie inspire by the life of Bruce Lee's trainer. Actor Yen says boxer Tyson was "very easy to work with" on the set of "Ip Man 3." The movie showcases Tyson's character triying to take over the city, causing Yen's kung fu master character to take a stand. Yen recounted that it was not only easy and a pleasure to work with Tyson, but that Yen has been a fan of a boxer for a long time, saying it was an honor to work with him as well.