"I was watching a little bit of "Little Focker's" to see how it measured up to its predecessors, and noticed something odd. There's a scene where this old, white haired man is doing some backyard work in preparations for an upcoming birthday party, and his voice and appearance struck me as awfully familiar. After a few seconds had elapsed, I realized that the character was being played by Harvey (Mr. White) Keitel!"
Would've elaborated in more detail, but the stupid 420 character limit made sure that wouldn't be a possibility.