Typing "Superman" on the YouTube search engine often results in unexpected finds, such as this clip from the Bollywood Superman, which is abysmal and features Superman rescuing an airliner by... well, by running underneath it, unless I'm much mistaken:
http://www.youtube.com/watch?v=BvelBLO4oHAOh, and I'm sure this one's been posted here before, but it's good fun:
http://www.youtube.com/watch?v=45wMDI-jXtoNot to mention the Jerry Seinfeld Amex ads, but I suppose everyone's seen those now.