If you’re the kind of superhero enthusiast who would like to ask, “Why so serious?” to the gloomy fanboys who live by Joker memes and other grim-and-gritty signifiers, “DC’s League of Super-Pets” is a goofy, colorful throwback to those comic books of the 1950s and ’60s that allowed no costumed avenger to go un-sidekick-ed.
While not as anarchic or outrageously hilarious as “Teen Titans GO! to the Movies,” this latest all-ages animated adventure from DC Comics and Warner Bros. nonetheless has — and offers — lots of fun with the four-legged counterparts of a Justice League that’s more “Super Friends” than Snyder Cut.