Trivia: The only film in the franchise to not use the series' trademark screeching violins over the opening title card. In addition, it's the only sequel in the series to use a subtitle instead of "Chapter" and a number, with the previous two films being referred to as "Insidious: Chapter 2" and "Insidious: Chapter 3."
Insidious: The Last Key (2018)
2 trivia entries
Directed by: Adam Robitel
Starring: Lin Shaye, Josh Stewart, Kirk Acevedo, Javier Botet
Continuity mistake: When Elise flees her house when she's 16, Christian follows behind her, calling for her. Suddenly, as Christian reaches the bottom of the stairway outside, their father Gerald appears right behind him. This is impossible... Gerald was nowhere to be seen in the previous few shots of the stairway, and furthermore, it was shown that he was walking with a cane and moved slowly as a result, so he wouldn't have been able to catch up to them that quickly. He just sort of... magically appears.