Supernatural horror has experienced a notable boom in recent years, with Insidious: The Last Key representing the latest silver screen foray into the world of paranormal hauntings. However, with The Conjuring franchise breaking new ground on the concept of a cinematic horror universe, it opens up a discussion of franchises that Insidious could cross over with at some point. As it turns out, Blumhouse Productions CEO Jason Blum recently opened up while promoting The Last Key and admitted that a crossover with the Sinister films could happen. Blum explained:
We almost did Insidious and Sinister and I still feel like we might do that so, I think so. I think we're going to cross our worlds at some point. I don't know how yet but we're gonna try.
The Insidious series takes a big picture look at paranormal activity by offering up characters who understand the evil they're facing, with Elise Rainier (Lin Shaye) representing the most notable of the bunch. By contrast, the Sinister franchise focuses explicitly on the hauntings by a lone demonic entity known as Bughuul, with a more intimate focus on that one demon's effect on those around him and how he drives his child victims insane over long periods of time. There's nothing inherently keeping the storylines from these two franchises apart, and Jason Blum seems to think that there's room for them to try and get a crossover made at some point.
Jason Blum's remarks to CinePOP about the possibility of an Insidious and Sinister crossover are not the first that we have heard about such a mixing. Specifically, while promoting the release of Unfriended a few years ago, Blum similarly mentioned that Blumhouse had dropped references to its own films into Sinister and Insidious projects with the intention of loosely hinting at a shared universe. Nothing substantial has come of it since he made those comments, but his more recent statement shows that there's still a willingness to make it a reality.
The groundwork for this type of development has already been laid in the most recent entry of the Insidious franchise. Although Elise Rainier canonically comes to her end during the events of Insidious Chapter 2 when she is killed, Insidious: The Last Key offers up a potential new franchise heroine in the form of Caitlin Gerard's Imogen Rainier. If Blumhouse wants to bridge Insidious and Sinister together, then having Imogen face off against Bughuul could easily help connect the two continuities.
Only time will tell if Jason Blum and Blumhouse will go all in on a crossover between Insidious and Sinister, but we will bring you more information related to this story as it develops. Until then, make sure to check out Insidious: The Last Key, which is now in theaters.