Los Angeles (AFP) – Animated superhero pic “DC League of Super-Pets” pulled in an estimated $23 million this weekend in a moderate opening that still managed to top the North American box office, industry watcher Exhibitor Relations reported Sunday. The Warner Bros. film, based on the DC Comics’ Legion of Super-Pets, follows Superman’s pet pooch Krypto (AKA Bark Kent), who joins up with a shelter dog and others to rescue other four-footed innocents being held by the evil Lex Luthor. Analyst David A. Gross of Franchise Entertainment Research classed the opening as “moderate” but said similar f…