Elf (2003). I'll admit it. I just never got Will Ferrell until I saw elf. He's childish, but in the best way possible. When holiday stress starts to edge out the good stuff, I pop this dvd into the player and get the joy of the season back again.
Great lines! Fun fact: Jason Isaac's line. "Let us hope Mr. Potter will always be around to save the day," was added last minute, and Dan Radcliff was not told. His response, "Don't worry, I will be," was his first reaction.