lpd said:
^I doubt very much that thats Mr Prowse in the costume I'm afraid.
You're probably right. I didn't watch it very closely the first time, but if you watch closely it doesn't look anything like Darth Vader from the movies. For example, at the 5:00 mark, he looks too short and too small-framed, and his stance is weird. Those sleeves are hanging off his arms like drapes. He almost looks more like Dark Helmet than Darth Vader in that shot.