It was an animated movie about pirates, it was not a movie for a young audience.
farcry Edited comment Aug 12, 2020
A cartoon in french about pirates?
It was an animated movie about pirates, it was not a movie for a young audience.
Maybe:
L’île de Black Mór (2004).
https://www.imdb.com/title/tt0364084/
https://www.youtube.com/watch?v=DIpfN3WR8XA