So i was watching tv in Sweden one day in 2017-2018 when a advertisement came up. It was a ad for a animated movie featuring a fish. All i remember was the fish said Ready? in Swedish ,then she farted and then the movie“s name came up on screen with the release date. Can someone please find it?
This may be a better question for r/tipofmytongue, but I do love a puzzle.
The only animated fish movie I can find so far within your date range is a movie called Go Fish. Does the animation style in your trailer look like the animation style in this trailer?