The most popular Movie you've never seen

[*Awful Llama*]

More recent movies I've not wacthedc:
Harry Potter
Twilight
Hunger Games
Lord of the Rings
Braveheart
Pretty much every Adam Sandler movie

If you're talking classics I haven't watched:
One Flew Over the Cuckoo's Nest
Lawrence of Arabia
Veritgo
The Sound of Music
Rocky