There are several film studios, but my inayopendelewa is Studio Ghibli. Studio Ghibli is a film studio that's made some of the most beloved anime films. They have around 20 films. Their 2 main directors are Hayo Miyazaki and Isao Takahata.
Studio Ghibli films are the king of having good plots. The 3 most impressively written films that I've ever experienced are all Studio Ghibli films. The plots in their films have very emotionally moving and wonderfully done scenes. The characters are often likeable and relatable. Plus the uhuishaji is awesome and the muziki is charming.