I loved the 3 Stooges as a kid. There was one where they tried to do 3D (i'm not sure if it actually was originally) and they did the throwing stuff at that camera like every scene.
Now that I'm older... I appreciate the Marx Bros. more :)
I love flipping late at night to see Marx Bros on. UNREAL how well their comedy has aged - it still has me in stitches. Duck Soup (of course) and Night at the Opera are my favorites.
I loved this one radio excerpt where (IIRC) Chico is told to look after gifts at a party so they're not stolen. The guest comes back and see that all the gifts are gone. He ingeniously replies; "I was watchin' the presents the whole time! First a man came into the room. Then he picked up all of the presents. Then he left out the window. I saw the whole thing". ba dum tss!
Love it. =)
In regards to Avatar. Meh. Get around to it if you can. The most accurate review to this day is it is pure Smurf Pocahontas...
If I were Jake Sully I would have slapped his tribal blue-woman for confessing to her royal family the they had just slept together (which causes village panic...good move there wench).
My favorite is Opera. I love the part early on when the "bad guy" opera singer gets knocked out and groucho puts his leg up on him . Chico walks up and goes "what happened?"
"he pulled a knife on me so I shot him."
Then he puts his leg up on him too, "hey bartender, two beers!" "i'll have two beers too."
Then the whole contract scene...http://www.youtube.com/watch?v=1azumuu_vmQ