Wow! I'm very impressed!
I honestly pulled Artie Lange and Ralph Richardson out of my ass, not realizing it was only within two degrees.
My Groucho to Sacha was longer and more convoluted.
Groucho Marx was in DUCK SOUP with Margaret Dumont
Who was in WHAT A WAY TO GO with Paul Newman
Who was in COLOR OF MONEY with Tom Cruise
Who was in LAST SAMURAI with Timothy Spall
Who was in SWEENEY TODD with Sacha Baron Cohen
Here is another one:
Groucho was in SKIDOO with Jackie Gleason
Who was in NOTHING IN COMMON with Tom Hanks
Who was in CHARLIE WILSON'S WAR with Phillip Seymour Hoffman
Who was in MAGNOLIA with John C. Reilly
Who was in TALLADEGA NIGHTS with Sacha Baron Cohen