Three Scientologists, one stupid acting style

Compare the original and the remake of Taking of Pelham One Two Three. In the first, Robert Shaw plays a deranged killer who hijacks a subway train in New York. It was the sort of role he was good at. He was quiet and tight-lipped and kept threatening to kill people. And he was far more frightening and convincing that John Travolta in the remake who decided that the character should talk constantly and say "funny" things like an idiot. Who likes this? Hasn't that sort of crap been done to death?

http://www.youtube.com/watch?v=bfF-uYnxtQs

Then there was quasi-Scientologist Will Smith in Independence Day. He's supposed to be playing an Air Force pilot. He fighting alien invaders. He goes into a crashed flying saucer and confronts the alien pilot, and he jabbers like an idiot the entire time, saying "funny" lines even though no one is there. Then he has to drag the alien through the desert and he is talking loudly the entire time. They apparently thought this was funny, too.

http://www.youtube.com/watch?NR=1&v=VIDlyl-8V1w

There's Tom Cruise----I can't stand watching him. I don't want to see him in interviews, promos---I don't want to see him anywhere on any show ever. So it's harder for me to find an example. But here:

http://www.youtube.com/watch?v=PoL59DglK-I

Why do they act this way? Do they think it's funny? Do they think this is fine acting? Do they think that real people in these situations would actually behave like this? What audience are these movies aimed at?

You know what would be refreshing? A new generation of stars. A new generation that adopts the grim deadpan style of Alan Ladd, or Robert Mitchum, or Leslie Nielsen in his pre-Airplane! days.