Poolboy: Drowning Out the Fury (2011)

In this unearthed lost movie from 1990 that the studio deemed too terrible to release, a Vietnam veteran Sal Bando (Kevin Sorbo), tortured by his past as a pool boy, returns home to Van Nuys, California, and a country he doesn't recognize, in which it seems only Mexicans run pool-cleaning companies. Bando sets off on a brutal mission to reclaim his "rightful" vocation and enact revenge on the man (Danny Trejo) who killed his wife and son.