Chloë Grace Moretz was the only actress who auditioned for the part of Cassie.
Chloë Grace Moretz was a fan favorite for the role of Cassie Sullivan long before she was finally cast.
Scenes were filmed on Cotton Avenue in Macon, Georgia which was made to look post-apocalyptic and a little too realistically. Some buildings were damaged by pyrotechnic effects, and residents called the city asking for them to pick up the trash on the streets.
On August 31, 2015, Chloë Grace Moretz revealed that she read the novel this movie is based on 3 times. She said that she was very excited to play her favorite character from the book.
Author Rick Yancey, who wrote the book on which the film is based, once worked for the Internal Revenue Service.
J Blakeson 's first film since The Dissappearance of Alice Creed, which was released in 2009.
A Sony leaked email revealed that Viggo Mortensen, Russell Crowe, Jason Clarke, Matthias Schoenaerts, James Badge Dale and Ethan Hawke were considered for the role of Vosch, ranked from first to sixth respectively. Guy Pearce, Demian Bichir, Luke Evans, Ben Foster, Joel Edgerton and Jared Leto were also considered. The part went to Liev Schreiber.
A Sony leaked email revealed that Mark Ruffalo, Joel Edgerton, Kyle Chandler, Jason Clarke and Liev Schreiber were considered for the role of Bob. The part went to Michael Beasley.
A Sony leaked email revealed that Natalie Portman, Jessica Chastain, Emily Blunt, Robin Wright, Rachel Weisz and Naomie Harris were considered for the role of Reznik, ranked from first to sixth respectively. Michelle Rodriguez, Marisa Tomei, and Juliette Lewis were also considered. The part went to Maria Bello.