noun
omnibus film; anthology film
A film composed of several short segments, often by different directors or with separate stories, released as a single feature.
このオムニバス映画は、三人の監督がそれぞれ短編を担当している。
In this anthology film, three directors each contributed a short segment.
From English 'omnibus' + 映画 (film). The term 'omnibus' in this sense is a loanword from English, referring to a collection of works.