noun
double feature; double bill
Refers to a movie program showing two films for one admission price. Common in the context of cinema schedules and classic film screenings.
あの映画館では、毎週金曜日に二本立ての上映をしている。
That cinema shows a double feature every Friday.
子供
When I was a child, I often went to see double-feature anime films.
三本立て means a triple feature, extending the pattern of 二本立て.
Compound of 二本 (nihon, 'two items') + 立て (date, 'program' or 'lineup'). The suffix 立て here indicates a set or program of a specified number of items, as in 一本立て (single feature) or 三本立て (triple feature).