Adorable 'DC League of Super-Pets' trailer introduces us to Batman's and Superman's dogs

I'll admit, DC League of Super-Pets sounded like a joke when it was first announced.

Sure, it's a dream to think we might get a movie about Superman's pup Krypto, Batman's pup Ace, and the Justice League's various other pets. But who would pay for that? Well, Warner Bros. would, and did.

DC League of Super-Pets features a...