I was going to say the scene where Andy climbs out of the sewer pipe but this works too.
Iconic Cool Hand Luke scene
Strother Martin outshines Paul Newman and that's hard to do.
Calling Dimitri in Dr. Strangelove is one of the single best movie scenes of all time. Hands down a top 5 funniest of all time. All because of the delivery of Sellers.
It's just classic.One of my Top 10 movies of all time. I also love a couple of the George C. Scott scenes. His visual takes are amazing for a guy that's famed for completely different roles.