R | | Horror, Mystery, Thriller
The film initially recouped its minuscule budget five times over with $10 million worldwide. As of 2016, the gross ballooned to $20 million worldwide.
What the fuck mom?
When Greg opens the door to what appears to be his mom, her left breast wasn't visible in the shot where she knocks on the door, but when opens the door, it's visible.
There are no opening credits at all, and the title does not appear on-screen until the end of the film.
The volume level of the music was substantially louder in the theatrical version than in the 2015 Blu-Ray and DVD release.
$160,089 15 March 2015