Both myself and a friend of mine remember Darth Vader saying "I want that ship" as the Falcon takes off from Hoth. He DOES say that line in another place (my memory is thankfully getting a little fuzzy. I haven't watched it in years in the hopes that I can forget it a little and see it fresher), but we both remembered it being specifically said as the Falcon was taking off. POSSIBLY as it leaves Tatooine in ANH.
My only conclusion was that it must have been dubbed into that scene in the story book version. You may remember, there were kids books with records (turn the page when you hear R2D2 beep like this...) where the record would read the book with the sounds while you read the words and looked at the pictures. I don't know for sure, but it was the only conclusion I could come to.
So the question for the forum: was there ever a version, TV spot, anything that had Vader say that line in that context? Anyone else remember this?