It's a Wonderful Life (1946)

J. Farrell MacDonald: Man Whose Great-Grandfather Planted Tree

Quotes 

• House owner : You must mean two other trees. You had me worried. This is one of the oldest trees in Pottersville.

  George Bailey : Pottersville? You mean Bedford Falls.

  House owner : I mean Pottersville! Don't you think I know where I live? What's the matter with you?

  [He proceeds toward his house. George is completely bewildered] 

  George Bailey : Oh, I don't know. Either I'm off my nut, or he is...

  [to Clarence] 

  George Bailey : ... or you are!

  Clarence : It isn't me!