The ending of 'Knock at the Cabin', like many M. Night Shyamalan, will stick with you.

Here, Brian Lloyd asks its stars Jonathan Groff and Ben Aldridge, who play Eric and Andrew, what they would have done if in a similar situation.

'Knock at the Cabin' follows a family's idyllic holiday at a cabin which soon becomes a post-apocalyptic nightmare.

'Knock at the Cabin' is out in cinemas on February 3rd.