Insidious: Chapter 3 (2015)

Deliberate mistake: When Quinn is texting the boy next door, he responds too quickly for it to be real. She sends the "So you think I can stop traffic, huh?" text and gets a response within literally two seconds. She then sends the "Did I wake you up?" text and gets two responses within five seconds. Texts usually take several seconds (at least) to be delivered and opened, so even with great service and lightning-fast fingers, this is obviously far too quick.

Bride In Black: This is how you die.
Elise Rainier: Not today.

Trivia: The directorial debut of screenwriter Leigh Whannell, whom wrote the first two entries in the series, in addition to several other popular horror films, including the first three entries in the "Saw" film series.