I watched "Jaws" again recently...and in Spanish, which is quite an experience.

There is a scene in the movie, I noticed, which is a bit dated. Quint opens a can of beer (where the tab is removed from the can). After he drinks it, he looks at Hooper and crushes the can in his hand. In 1975 aluminum cans were much harder and sturdier than the cans of today, so it actually took a good bit of strngth to crush the can with one hand. In today's world Quint would look really silly crushing a can to look intimidating. Also, because cans for the past 20-25 years are thinner and lighter, the act takes away from much of the humor when Hooper responded by crushing a styrofoam cup.