Linens 'n Things had a giant poster sized frame with a insert that had different sized circles and squares cut out of it so you could display various pictures in it. I took the insert out and put a movie poster in it.
It's a shinny black metal frame. The movie poster I have is larger than any frame Wal-Mart had, so this was the best I could do without paying for a custom frame. It was just under 30 bucks, I think.