I'm not sure why the Koreans picked Darth Vader to advertise a product named the "Olleh LTE Warp," as there's nothing in Star Wars called that (unless they dubbed it funny in Korea), but I can't object to something that results in funny videos of Darth Vader and stormtroopers doing silly things.
Particularly amusing is the weird march the stormtroopers do through the airport.
But I think the funniest thing, intentionally or not, that these commercials bring across is the idea that Darth Vader is an invalid.
He is, you know-the man's in extremely poor health, and can only move because of all the mechanical bits. (Even if that weren't the case, it's not like that costume is comfortable either. I myself can't even drive while wearing a hood; imagine walking down the street with your field of vision that restricted.) So the fact that they depict him trying to make his way around regular life and having great difficulty is... well, it's actually a bit sad.
Well, maybe "sad" isn't the word.
No, definitely not the word. A bit sobering though.
Mostly. Not counting that one.