ट्रिविया

The train scene was filmed in Belgrade, Serbia. The train did not need any "make-up" as the train operates in this condition regularly. The underground station was made for a metro line that never has been finished.

The film was originally produced by Universal for a nationwide theatrical release, but was instead offloaded to Netflix for an undisclosed amount.

This movie was shot in Belgrade, Serbia, over 40 days.

Lizzy Caplan's (Alice) real life husband, Tom Riley, plays Chris the Wellness Centre Patient that warns Peter.

This is the second time in which Michael Pena plays a father fighting aliens, the first being 'Battle:Los Angeles'.