It's happened to all of us for one reason or another, and despite our best efforts and intentions, we just can't finish it!
Movies, that is. Not necessarily bad ones, just ones that took you ages to go through - and even then, you probably never got to see the ending.
JFK (five times, fell asleep, never finished it)
The Year of Living Dangerously (five times, fell asleep, never finished it)
Steamboy (about a dozen times, but finally managed to finish it)
In the Valley of Elah (trying again tonight for the fourth time, but chances are after so many rum-and-cokes, I'll just fall asleep again - but I'm close to the ending now, so I'll probably eventually get through it)
Any of you guys go through this kind of experience with movies?