Four stars Rating: PG, for dramatic intensity, and sequences of violence and peril Available via: Apple TV+ By Derrick Bang The best animation houses have their own distinctive appearance, pacing and storytelling approach. Classic 1940s and ’50s Warner Bros. cartoons looked nothing like their Disney cousins, and nobody would confuse one of Hayao Miyazaki’s Studio Ghibli efforts with a Pixar entry. The same is true of Ireland’s Tomm Moore and Ross Stewart, who — as artists, writers or directors under the Cartoon Saloon banner — have previously brought us 2009’s “The Secret of Kells” and 2014’s “Song of the Sea,” both of which earned Academy Award nominations.