Hilarious YES MAN Darth Vader movie mashup

Here is a hilarious movie mashup of Yes Man starring Jim Carrey and Darth Vader. The key to a good mashup is proper editing, and this is spot on. I can not imagine how long it took to make it. Here is the description:

Darth Vader sure says "Noooo" a lot. But now he's become a "Yes" man, although technically he's more machine than man.

What are your thoughts?