This is a great genre of movies. I like "Independence Day", "Armageddon", "Signs", "Jaws", and "Twister". ... if you can count aliens as a disaster, which I guess you can if they're the bad-ass variety of alien. Joaquin Phoenix and Mel Gibson were both very good in "Signs". I actually thought that M. Night Shyamalan was going to be a legendary director, but he seems to have fizzled out.