If you had it installed it from the play store you could theoretically get the name from there. Here's a Google support page for how to look up apps you've previously installed:
https://support.google.com/googleplay/thread/124657633/how-do-i-see-previously-installed-apps?hl=en

Even with inflation the cost of making films (especially in the US) has gone up a lot. Just a rough Google says that 20 mil in 1980/81 is now roughly 75 mil. That makes the new Indie film more than 3x the production cost