"No! Grandpa's not sneaky!" cries Alan Arkin in our video chat about his role as a wacky bohemiam mentor in "Little Miss Sunshine." "He's right out here, which is one of the things I love about him. He's interested in porn! He's interested in drugs! He's a complete degenerate, but he's right out in the open with it!"

Arkin has strong Oscar buzz for the supporting-actor race. If he lands a nomination, it'll be the third of his career, following up on previous best-actor bids for "The Russians Are Coming! The Russians Are Coming!" and "The Heart Is a Lonely Hunter."

Watch him discuss his previous trips to the Oscars plus hear his views about his eccentric role in the surprise smash hit of 2006 — "Little Miss Sunshine" — CLICK HERE! (Note: You may need to crank up the volume a bit.)