The writer-director was partially inspired by a close friend who died of ALS, but ultimatley lost a scene involving the affliction: "That's definitely one that hurt when I took it out." ...

The film pays tribute to the late brother of Whannell's wife Corbett Tuck, who also wrote "Wolf Man" with the director.

It probably was unrealistic to hope for something of a similar quality to that of “The Invisible Man.” The last time Leigh Whannell directed a movie, it was that almost shockingly good entry from ...