The British guy, Darren Shahlavi, is incredibly ripped in this movie, but he hardly shows any signs of pain right up until the end of the fight which seemed a bit weird. Yip man would land some punches/kicks that would seem to hurt, but he just bellows and shrugs them off mostly. I'm no boxing nor fighting expert, but it seemed strange that Yip man got the shit kicked out of him and the British guy made his punches seem like almost nothing.
Also, the Bruce Lee scene was just a short, comedic cameo, which was a bit of a let down, though not sure what I was expecting; everybody in the theater seemed get a kick out of it when he did his trademark nose wipe.