Dick Van Dyke and Julie Andrews Lip Sych Each Other's Lines in This Outtake

This brief gem buried in the bowels of YouTube shows an outtake from the set of Mary Poppins.

The actors recorded their songs in an audio studio for clarity and then lip-synched them on the set. Here, Julie Andrews mouths the lines of Bert and Dick Van Dyke does those of Mary Poppins. "Chim Chim Cher-ee" gets delightfully weird as the costumed actors switch roles.

This is the sort of gag reel that I'd like to see from more television shows and movies. Just have the actors switch their lines and see how convincing they can be.

-via Laughing Squid