About 20 minutes in I had to check that I wasn't watching a series pilot. AVA'S POSSESSION doesn't really take off like a movie should. The back-story is a mismatch of flash-backs and hints from the family that don't accelerate the plot much. I realise I'm supposed to suspend disbelief a bit more than usual due to the genre, but the alternate world, where possession is relatively common, wasn't as fleshed out as I thought it should be.
That aside, it is funny in parts, and watchable in a very predictable and cliched way. Overall: a bit flat, a bit lazy and nothing to get excited about.
