Sci Fi film

Hey guys,
Im trying to remember the name of a trailer i saw a few months back, really getting on my nerves that i cant remember it.
Its a sci fi movie as the title suggest, if i remember correctly it was set in a sort of institute where they do tests on people in small rooms with windows. It looked pretty original and i don't think it was a really big budget film, it was possible indie.

Im pretty sure its not out yet, not sure when it was going to come out.

If anyone has any ideas about what film it is can you please let me know. Really liked the look of it, so wanna watch the trailer again.

Cheers