I didn't get anything to drink because I didn't want a full bladder (I missed part of a Harry Potter movie once because of that).
That aside, the movie didn't disappoint (in my area, though, I've heard mixed opinions). Wrinkly Harrison Ford (he's older than Spielberg and Lucas, for crying out loud!) was a distraction, but I thought it had a pretty neat plot and some great action sequences (surviving nuclear blast=Hardcore). There was a obviously a little bit more mystery-deciphering along the in the wake of the National Treasure movies, but that's to be expected.