I thought MoviePass was already deep in the red. What incentive do they or any company have to protect their data if they are imminently going bankrupt? I'm guessing cybersecurity is not their most pressing concern, although maybe it is now.
General rule of thumb for spam email is 0.1% conv rate, so if you blasted this leak list then you'd have 150K sign ups.
There is an entire data broker industry that relies on selling lead/contact information, so if anything there is a value savings on the hack. I've seen high quality contact (and assoc. company) data sell anywhere from $3 to $120.