Maybe it's me, but I don't see this data as all that valuable. Say I go to the movies 8-10x a month. Given that my local theater probably gets about 20 new movies per month, does knowing which half of the movies I see really provide analytical value over aggregate box office numbers?
I wonder if the app is spying on you in more nefarious ways. I guess I could dedicate a retired phone to be my "movies" phone.
The missing piece with box office numbers is connecting individual ticket sales with other individual ticket sales, as well as a host of other factors (since they have your personal information, and credit card or whatever on file, they can correlate your activity with all kinds of other things).
I wonder if the app is spying on you in more nefarious ways. I guess I could dedicate a retired phone to be my "movies" phone.