No, MoviePass (as it exists now) makes no profit off from its subscription services. In fact the company is working on a loss. How the company plans to make money is by selling your information, just like websites like Facebook. Here's a breakdown of it...
-You go see Summer Blockbuster.
-MoviePass sells this knowledge to online advertisers who now target you with merchandise for Summer Blockbuster
-On Amazon you buy pants.
-MoviePass sells this knowledge to the companies that run ads before films. Suddenly they are more conscious that people who films like Summer Blockbuster are also interested in pants, so you wind up with an ad for pants before the film.
The company also hopes to someday partner with theaters. Right now, US theaters are losing billions a year because films have a VERY limited shelf life, and ticket sales during the week are drastically down. It's in their best interest to entice MoviePass customers to show up on odd days to encourage sales of concessions. So it's not unlikely that we'll see a point where there are specific movie showings someday exclusively for MoviePass customers where you're bribed to come in with discounted popcorn and soda, just out of a hope of filling seats.