Okay, figure this one out. I went to see ROTK again, and DIDN'T do a preemptive bathroom run. I also drank an entire frozen Mountain Dew, and most of a 20 oz bottle of water. After the movie, I was FINE! So this must lend to the statement I made before about the movie exciting the piss out of you....and the piss can come when you least expect it. Though I probably gave more detail than you needed again.