The ending got stolen twice! (spoiler warning x3)

A lot of movies, there's bit that get lifted and used elsewhere, but this movie had the exact same plot device stolen not once but twice.

OK, if you've watched the movie, you'll know the giant fish is killed when a dead scuba diver's body is booby trapped with explosives, which are then used to blow up the fish.

Now, a year later, an Italian movie called L'Ultimo Squalo was released. This is the notorious Jaws knock off, released Stateside ever so briefly as Great White, before being pulled from theaters due to an injunction from Universal, who spotted several bits knicked straight off the first two Jaws pictures. But the death of the shark wasn't. In this picture, a dead scuba diver carrying explosives (played "brilliant" by a dummy at this point, but earlier in the picture, said diver was played by Vic Morrow) is eventually seen dangling from the shark's mouth, at which point James Franciscus realizes he's carrying the detonator, which he activates, thus detonating the explosives and blowing both the dead diver's body and the shark together.

Now, I've heard it said that part of the legal arrangement to keep the producers of L'Ultimo Squalo from being raked over the coals, litigiously speaking, was to allow Universal to use whatever they wanted from the stuff they didn't steal from the Jaws franchise in the next Jaws picture. So, in Jaws 3, we have Simon McCorkendale getting swallowed by the shark, with a hand grenade in his hand, which is later triggered by Dennis Quaid.

Yeah, I know nobody cares. So what?