A grindhouse or action house is an American term for a theatre that mainly shows low-budget horror, splatter and exploitation films for adults. According to historian David Church, this theater type was named after the "grind policy", a film-programming strategy dating back to the early 1920s which continuously showed films at cut-rate ticket prices that typically rose over the course of each day. This exhibition practice was markedly different from the era's more common practice of fewer shows per day and graduated pricing for different seating sections in large urban theatres, which were typically studio-owned.
