Studio Ghibli's standards for their own work are clearly very high, but this hasn't prevented them from collaborating with other studios on projects. In 2014, Miyazaki's son Goro set out to direct his first anime series, Sanzoku no Musume Ronya, a computer-animated adaptation of Astrid Lindgren's fantasy tale Ronja, the Robber's Daughter. This was a project for Nippon Hoso Kyokai (NHK), Japan's national public broadcast station, and it was produced by Polygon Pictures and co-produced by Studio Ghibli. Yeah, that's quite a bit of collaborating right there.
Just two years later, Ghibli teamed up with the German company Wild Bunch to produce The Red Turtle, co-directed by Dutch animator Michaël Dudok de Wit. The film is silent and short, running just 80 minutes, and it tells the tale of a man stranded on a resource-rich island. However, every time he tries to escape, he's thwarted by a large red turtle. It was nominated for the Best Animated Feature at the 89th Academy Awards, and while it was beaten by Zootopia, the movie still deserves all the praise for its touching story and gorgeous visuals.