A hit work: a film, song, book, etc. that becomes very popular or a bestseller/blockbuster.
彼の新作映画は公開初週で大ヒットし、国際的にも注目されたヒット作となった。
His new film was a big hit in its opening week and became an internationally noticed hit.
この小説は口コミで広がり、いつの間にかヒット作になっていた。
This novel spread by word of mouth and before long had become a hit.
ヒット作を生み出すのは難しいが、良い作品は長く支持される。
Creating a hit is difficult, but good works enjoy support for a long time.