If there were a WalMart nearby and they have a decent movie section, there is a four-part adaptation of the Hunger Games trilogy sold as a package deal on video disc. That's where I got my copies. The problem is that it is an older series, now 9 years old for MockingJay pt. 2 and even older for The Hunger Games (1st movie of the set), so the initial sales push is over. The good news is that Suzanne Collins issued a fourth book in the series, The Ballad of Songbirds and Snakes, which was made into a movie and might cause boxed sets to surge in sales again.
As is almost always the case, the movies slightly diverge from the first three volumes in some spots. Fairly close most of the time, but some variations that you might recognize after a fresh reading of the original novels.