Here's a trailer for the upcoming film
Buried, haven't heard of it? that's probably because it's a bit of an underground film.

Lame jokes aside, trailer is pretty intriguing, well sort of. From the trailer I'm dubbing it 'Cloverfield in a Coffin'.
Check it out:
and here's a cool poster, look at it:
Buried is about a guy named Paul (Reynolds) a U.S. contractor working in Iraq. After he’s attacked by a group of Iraqis he randomly wakes up to find himself buried alive inside a coffin. Armed with only a lighter and a cell phone he’s in a race against time to escape this claustrophobic death trap. I assume that the whole film doesn't take place inside the coffin, I think even Hitchcock would have struggled to make an interesting film entirely set within those confines. That aside, it's a chance for Ryan Reynolds to flex his acting muscles instead of his real muscles like he usually does.
The film debuts at this years Sundance film festival, which is happening over the next couple of weeks.
source-http://www.collider.com/2010/01/20/first-trailer-for-buried-starring-ryan-reynolds/