How can i customize a movie from utube?

I want to put Rascal Flatt's singing "Here Comes Goodbye" but with pictures of Brokeback Mountain that would match the words of the song. like this song a href="http://www.youtube.com/watch?v=Z_eZJy8hR..." rel="nofollow"http://www.youtube.com/watch?v=Z_eZJy8hR…/a "Whiskey Lullaby" by Brad Paisley with Alison Krauss but with pictures from Pirates Of The Caribbean. How do i do that?