"Donnie Yen was once approached by director Jeff Lau – when his buddy Wong Kar-wai was still filming his own Ip Man movie – to play the master back in 1996. “Actually, I was signed to play Ip Man; I took the deposit too,” clarifies Yen. “And Stephen Chow [was to] play Bruce Lee. But then the company fell apart and the movie never went [into production].”"
Stephen Chow as Bruce Lee would've been amazing. Closest we got was that scene in King of Comedy where he's doing a Fist of Fury play.