What is the name of the movie about a crop duster/bank robbers who steal mob money and the mob wants it back.

Question

I believe it starred Gene Hackman. Gene finally kills the Mob guy and  drives away with the money.

Answer 1

I think it is this film: Charley Varrick (1973) , but it doesn't have Gene Hackman.

http://www.imdb.com/title/tt0069865/?ref_=fn_al_tt_1

From around the same time there is  Prime Cut (1972), which has Gene Hackman and is about mob money, but doesn't match your description.

http://www.imdb.com/title/tt0069121/?ref_=fn_al_tt_1