Shark (1969)

aka's: Shark!/Maneater/Nido De Tiburones/Un Arma De Dos Filos/Caine/Twist Of The Knife

A gunrunner (Burt Reynolds) loses his cargo near a small coastal Sudanese town so he's stuck there. When a woman (Silvia Pinal) hires him to raid a sunken ship in the shark-infested waters, he sees a chance to compensate for his losses, but he's not the only one. Also stars Arthur Kennedy and Barry Sullivan.