Talking canines shine in fluffy but fun family comedy ‘Show Dogs’

Funnyman Will Arnett gets upstaged by a streetwise canine in the amusing, featherweight family comedy “Show Dogs.” Think “Best in Show” meets “Miss Congeniality” — but with talking animals.

When baby panda Ling Li is kidnapped (bear-napped?) by traffickers, FBI agent Frank (Arnett, in appealing…