Overly long (imo) films actually put me off, some films just seem to drag for me, things like spiderman 3 that ran for 140 mins make me want to wait for dvd, where i can sit for over 2 hours in comfort and press the pause button on the almost ineveitable toilet break.
There is a very rare occasion where length will not put me off, LOTR: ROTK was one example, but i made the effort and went to a cinema with electric recliners and a bar
edd