KUNG FU THEATER NEED HELP?

by james
(az)

Remember seeing this movie in early 80's on kung fu theater where the 2 heroes fight at the end in a stadium or something like that.They fight hundreds of guy with every weapoon but at the end I think they both die from guys shooting them from the top of the stadium or somehthing.Think it takes place in 70's would love some help on this!!!!!