Warner Bros. calms fans with fun 'Justice League' footage
![Warner Bros. calms fans with fun 'Justice League' footage](http://bloximages.chicago2.vip.townnews.com/journalstar.com/content/tncms/assets/v3/editorial/8/31/8316cc1e-bbad-56ad-b7f2-63759e1f496b/5793f70e4cd61.image.jpg?resize=300%2C217)
SAN DIEGO (AP) — After "Batman v Superman: Dawn of Justice" put the launch of the DC/Warner Bros. universe on shaky ground, the studio came back swinging at Comic-Con Saturday armed with movie stars, brand new footage and a sense…