Sony: Insidious Movie
My strategy for Sony’s Insidious was simple: horror fans love to be scared.

We released ‘found footage’ horror films on YouTube (when that was a thing)
All coming from a woman being haunted, herself, on twitter (back when that was a thing)
There were hints tying it to the film throughout. But we made the link clear when the blogger went insane the day the film was released.
And a low budget movie grossed over $100M