In no particular order:
Buster Keaton & Charlie Chaplin together in Limelight.
One of Chaplin's last films, it was the only film that they ever made together.
This is towards the end of the film, and shows Chaplin's character back on stage after many years away from performing. It's not a great movie, but this is the best bit of it.
There is a school of thought that says the Chaplin edited out Keaton's funny business, reducing it to just a wee bit, but I don't know.
Charlie Chaplin in The Great Dictator
Chaplin as a Hitler like dictator plays with the fate of the world.
The political impact of this is truly awesome, and yet it's so beautiful and entertaining at the same time. I aspire to this.
Poetry in motion.
Buster Keaton in Cops
This is the chase sequence at the end of his short film Cops.
For full impact you should see the whole short. It's very, very good.
Laurel & Hardy in Way Out West
A short musical number by the perfect double act.
Charlie Chaplin in City Lights - Boxing Sequence
Fantastic stuff.
It's worth seeing this movie all the way through. It makes me cry like a baby every time I come to the end.
There's some fantastic things with drunk acting in the film too.
Well worth going out to buy!
Buster Keaton in Neighbours
You need to see the whole film to get the point of this sequence, but it's great none the less. It's all on youtube.
Charlie Chaplin in Modern Times
The first time we ever hear Chaplin speak / sing.
Young Frankenstine - Puttin On The Ritz
"My grandfather's work was doo doo!"
Fantastic!
Frasier - Niles in 3 Valentines
David Hyde Pearce is physically superb in this sequence that just builds and builds to a very silly crescendo!
Sir Ian McKellan on Acting in Extras
An acting masterclass from an acting master...