Hi BWT,
You are correct! Our service is developed using Wordpress as the backend.
We've developed a series of plugins for Wordpress that make it simple for theaters to keep their showtimes up to date, import movie information from The Movie DB, synchronize their schedule with Google Calendar and automatically post daily showtimes to Twitter. Because we use Wordpress as our CMS, you can also edit any content on the website and even author your own blog.
Our service is free to setup, and only costs $100 per month afterwards. The cool thing about the system, is that we are continuously working on improvements to the service, and whenever a new feature is completed, it instantly becomes available to all theaters.
If you have a second, check out a few theaters that are currently using our service
The Mayfair and
Bloor Cinema
Take care, and please let me know if you have any questions or comments.