Trivia: Strangely enough, despite being the fourth film, "Paranormal Activity 4" is actually the first proper sequel in the series. Both the second and third films were prequels to the original.
Trivia: Quvenzhane Wallis was nominated for the Best Actress Academy Award for her role as Hushpuppy. At the age of nine, Wallis became the youngest Best Actress nominee in history.
Trivia: Before the One Percenter leader crashes his motor cycle into the chicken truck during the car chase sequence, the Wilhelm scream can be heard.
Trivia: Eva Amurri and Susan Sarandon who play the young and older Mary McGarricle are real life mother and daughter.
Trivia: Gemma Arterton, who plays Clara, is only eight years older than Saoirse Ronan, who plays her daughter Eleanor.