I watched this very low budget film with my girlfriend the other morning called Lo. We were both very, very impressed.
There are only a few set pieces and actors, but the gist of the story is that a man summons a powerful demon to enlist its help in retrieving his girlfriend, who has been kidnapped by other demons and presumably been taken into Hell. An excellent script and cheap - yet effective - props, makeup, and sets ensue. The acting was merely ok, but it was clear that a lot of the experience of the production was rooted in stage performance, not to mention the fact that the entire movie could be converted into a theatrical play quite easily, given the threadbare circumstances of its presentation. I was very pleased with its cleverness.
There are more things in heaven and earth, Horatio,
Than are dreamt of in your philosophy.