Five Great Comedians Who've Lost It.

I can't disagree much with the assessment of Steve Martin, Mike Myers, Jim Carrey, Eddie Murphy and Robin Williams' careers at Cracked.com.

If you had to point to the first film where Williams was clearly trying to be funny, but sort of thrashing around in a failed attempt to do so, it'd most likely be Good Morning, Vietnam, wherein Williams interprets "Hilarious radio DJ" as someone who impersonates an Angry Black Man, Gay Hairdresser and Southern Preacher in an endless, irritating soundloop. It's the movie equivelant (sic) of getting locked in a room with a Paul Reiser robot that's stuck on "Joke About Airline Peanuts" mode.

Kinda harsh, but pretty true. No one knows who George Gessell is anymore, Robin. (Though I liked the "Dr. Doolittle" flicks.)