There is a movie in which there are many fish people in the sea who swim out to sing, which seems to be adapted from fairy tales. What's the name of this movie?

Pirates of the Caribbean 4: rough? (20 1 1)

Director:? Rob Marshall

Screenwriter:? Ted elliott? /? Terry Rossio

Starring: Johnny Depp? /? Penelope Cruz Sanchez? /? Geoffrey rush? /? Ian mcshane? /? Sam Claflin? /? more ...

Type:? Action? /? Fantasy? /? take a risk

Country of manufacture:? United States of America

Language:? English

Release date:? 20 1 1-05-20 (USA/Chinese mainland)

Length:? 136 minutes

Also known as:? Pirates of the Caribbean: Pirates of Hong Kong/Pirates of the Caribbean: Ghost Sea/Pirates of the Caribbean 4: Weird Tide/Pirates 4