Perhaps they were referring to "Planet of the Inklings: Legacy" - a science fiction animated feature film based on the game Splatoon.
The film is scheduled to be released in theaters worldwide on February 28, 2030, from 20th Century Studios, Regency Enterprises and Nintendo.
Plot: In the distant future, unusual intelligent creatures live on a planet abandoned by humans: Inklings, Octolings and the Kaokog clan. Their world is threatened when the planet is invaded by the armies of the Apes under the command of the ambitious General Guanwong.
The main characters: Inklings Orange Rosarina and Blue Miles, as well as their captives Pearl and Marina. Armed with traditional weapons - a bow and a sword, they stand up to defend their world from high-tech invaders.