The Mad Hatter Is Designer Vivienne Westwood?

12/17/2009 2:12 AM PST BY TMZ STAFF
Here's Johnny Depp as The Mad Hatter in the upcoming film "Alice in Wonderland" (left) -- and British fashion designer Vivienne Westwood, 68, at a runway show in Paris (right).

Alice in Wonderland
One of them lives down a rabbit hole.

We're just sayin'.