Boris Karloff and Robert DeNiro
Robert DeNiro was in Casino with Don Rickles
Don Rickles was in Bikini Beach with Boris Karloff
How about Steve Guttenburg and Jimmy Stewart
Good job! That was quick!
Ok
Guttenberg was in the BOYS FROM BRAZIL with Gregory Peck.
Gregory Peck was with Jimmy in HOW THE WEST WAS WON.
Next: Groucho Marx and Montgomery Clift
(easier than you think
)