In Ratatouille (2007), swirls of colours are seen in the background in a scene where Remy savours his food. This scene was animated by Michael Gagne, who has a form of synaesthesia, and was told by the director of the movie to visualize taste.4yr ⋅ celleryskates ⋅ r/MovieDetails
Somebody mentioned this subreddit in the comments to I thought I'd share this here as well :D4yr ⋅ celleryskates ⋅ r/Synesthesia