Lord of the rings.
Specifically, Fellowship, extended edition
Nah, just 12 hours of extended edition x3. One sitting.
The Fifth Element.
Monty Python and the Holy Grail
LOTR
Pirates of the Caribbean
I watched this so often as a kid, I could quote the entire thing verbatim from start to finish.
Shaun of the Dead
Dodgeball
So many good answers here, but I gotta add Aliens and Ferris Bueller’s Day Off
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Evil Dead 2
DEAD BY DAWN DEAD BY DAWN DEAD BY DAWN
Kung Fu Hustle
Hackers. It’s so bad but I love it
Back to the Future.
The Breakfast Club
Superbad
How the hell have neither Mean Girls or The Princess Bride been posted yet?? Those are, like, the most quotable and fun movies ever.
Starship Troopers. It doesn’t matter what mood I was in, I will be in a better one by the time it finishes. Also makes for excellent background for household chores, once you have the whole film basically memorized.