i've been reading for about 48 years, and i've found that, after reading good literature, i can't read crap.
for example, one time i tried to read valley of the dolls by jacqueline susann. it was sopoorly written that it grated on my sensibilities. i couldn't get past, if i remember correctly, the first 30 pages. thankfully i bought it at a used book store; i took it back then with some other books there and got store credit.
that's not true for movies. i could sit through a bad one as well as i could sit through a good one. i wouldn't walk out of a bad movie if i was in a theater or turn it off if it was playing on my video player, but i probably wouldn't watch it again.