Producing Crap.

How come the producer Jerry Bruckheimer is responsible for a string of dismal movies such as 'Pearl Harbour', the 'Pirates of the Caribbean' sequels, 'Coyote Ugly' and 'National Treasure' yet is also responsible for some of the very best television drama such as CSI and 'Without a Trace'? It seems reasonable to suppose that someone who makes cliched and overblown rubbish in one medium would to do the same in the other, yet this is clearly not the case.