'Frank' is a movie that has the audacity to cast a known face like Michael Fassbender in the lead role and then hide him in a giant, silly-looking fake head for the entire running time. In other words, it's our kind of weird. The film was a big hit at the Sundance Film Festival -- where we gave it a sparkling review -- and with the first 'Frank' trailer, you can see why. This movie looks crazy and, more importantly, crazy good.

Domhnall Gleeson, who really got our attention in last year's 'About Time,' stars as a young man who falls in with the the title character, an alternative musician who insists on wearing a massive fake head wherever he goes. One thing leads to another and soon they're forming a band, developing a fan base and embarking on a truly strange odyssey of music and madness. We were already sold before we saw that it was written by Jon Ronson, the incredible author responsible for books like 'Them' and 'The Psychopath Test.'

Here's the official synopsis:

Acclaimed Irish director Lenny Abrahamson follows up his award-winning films Adam & Paul, Garage and What Richard Did with an offbeat comedy about a young wannabe musician, Jon (Domhnall Gleeson), who finds himself out of his depth when he joins an avant-garde pop band led by the mysterious and enigmatic Frank (Michael Fassbender), a musical genius who hides himself inside a large fake head, and his terrifying bandmate Clara (Maggie Gyllenhaal).

'Frank' will arrive in theaters later this year.