ему не понравилось

he didn't like it

→ он
phrase Uncommon #14,840
he didn't like it Russian expresses the person who likes or dislikes something in the dative: ему means “to him.” The verb form changes to agree with the thing being liked.
RU: Ему не понравилось это кино.
EN: He didn't like this movie.

Ему не понравилось.

He didn't like it.

— Королева (2014)

Это ему не понравилось, и он полез в драку.

He didn't like this and he got into a fight.

— Семь Самураев (1954)