don't you think it has more to do with the likes of jerry bruckheimer and his now dead partner don simpson, joel silver,and james cameron spending scads of money on special effects, car crashes, etc. verses creating compeling stories. titanic was quite possibly the worst movie ever made was.. it really necessary to smash thousands of dollars of specially made china for a paper thin storyline? that of course is followed by Matrix 2 and 3, the fast and the furious, XXX, King Arthur, etc, etc, etc.
some of ron howards movies will stand the test of time, apollo 13, a beautiful mind, and the new boxing movies. sure he's had clunkers but so has george "marketing" lucas