Sinister (Momentum Pictures) is out at UK cinemas on Friday 5th October and to celebrate we're offering one lucky reader the chance to grab a poster and exclusive, limited edition Sinister bag.
Read on for a synopsis and details of how to enter the competition...
"A true crime novelist (Ethan Hawke) struggling to find his next big story, moves his family into a house where the horrific murder of an entire family took place. But after finding a box of home videos in which other families are also brutally murdered, his investigation leads him to a supernatural entity that may be placing his own family in harm’s way..."
Read our review of Sinister here.
To be in with a chance of winning, firstly make sure you like us on Facebook (or follow us on Twitter)...
...Then complete your details below, using the subject heading "SINISTER". The competition closes at midnight on Saturday, October 13th. UK entrants only please.
By entering this competition you agree to our terms and conditions, which you can read here.