noun
first-run theater
A movie theater that screens newly released films, as opposed to second-run or revival houses.
この封切り館では最新の映画だけを上映している。
This first-run theater only shows the latest movies.
映画館 is a general movie theater, while 封切り館 specifically refers to one that shows first-run films.
Compound of 封切り (ふうきり, 'first screening of a film') and 館 (かん, 'hall' or 'theater').