Musicians and movie stars go together like crappy albums made by action-film stars ... or forgettable movies starring guys who usually spend their time strumming guitars. But sometimes magic happens. Well, maybe not magic. But occasionally a famous movie star will appear in a music video as a favor, steppingstone or a lark. Our list of the 10 Alt-Rock Videos Featuring Movie Stars includes some of each.

  • Fiona Apple, 'Not About Love'

    Before he got super-famous in 'The Hangover,' Zach Galifianakis was hanging around Fiona Apple's bedroom and basically being Zach Galifianakis. Which is good enough for us.

  • Devendra Banhart, 'Carmensita'

    Natalie Portman started dating hairy freak-folk dude Devendra Banhart after she appeared in this 2007 video for a song from his 'Smokey Rolls Down Thunder Canyon' album. We're not sure why either.

  • Beck, 'Sexx Laws'

    What else does the colorful, playful and kinda goofy clip for Beck's 1999 song need? How about Jack Black bouncing around the whole thing doing what he does best?

  • Broken Bells, 'The Ghost Inside'

    The side project featuring the Shins' James Mercer and producer Danger Mouse sure makes some lovely music. The equally lovely Christina Hendricks (from 'Mad Men') shows up in this video.

  • Dashboard Confessional, 'Stolen'

    Before she stole our hearts in 'House M.D.' and that 'Tron' movie, Olivia Wilde was helping Dashboard Confessional's Chris Carrabba get all moody in this 1996 video.

  • Brandon Flowers, 'Crossfire'

    Charlize Theron -- the beauty who's played everything from a real-life serial killer to alien food -- stars in this clip from the Killer frontman's solo debut. She kicks ass, unsurprisingly.

  • Gorillaz, 'Stylo'

    Bruce Willis plays a badass with a gun (duh) in this stylish clip that includes fast cars and a pair of animated dudes who always seem to be getting in trouble in Gorillaz videos.

  • Green Day, 'Wake Me Up When September Ends'

    The big ballad from Green Day's 'American Idiot' album features Jamie Bell ('Billy Elliot') and Evan Rachel Wood ('The Wrestler') showing off their thespian skills. Pretty straightforward.

  • Sigur Rós, 'Fjögur Píanó'

    Shia LaBeouf gets naked -- like full-frontal, definitely-NSFW-naked -- in this eight-minute clip for the Icelandic band's gorgeous song. It's arty and, um, long. The video.

  • Yeasayer, 'Madder Red'

    'Veronica Mars' star Kristen Bell stars in this clip for the Brooklyn band's 2010 single. It's kinda weird -- just what is that thing Bell loves? -- and sorta sad. But it suits the song's mood.