
DC films have a reputation for being a little too self-serious. The comic-book giants made significant strides to chip away at that dark and dour image in recent years, but it lingers even with things like “The LEGO Batman Movie.” Sometimes it’s even easy to forget that when it comes down to it, superheroes are for kids.
This makes “DC League of Super-Pets,” a straightforward cartoon with a sense of humor about itself and an all-star voice cast, somewhat refreshing. It also could be viewed as a shameless early advertisement to get impressionable young minds hooked on the Justice League so that several years from now when it’s inevitably rebooted, there will be a youthful, built-in audience.