Cap vs Crossbones and Hidden Hawkeye - Civil War Set Photos

 Via this big gallery @JustJared.com

 via MTV.com

 Here's a pretty cool clip of the fight action...

Captain America vs Crossbones #captainamericacivilwar

A video posted by Esteban (@estevandam) on May 19, 2015 at 4:46pm PDT

...with more clips @ comicbook.com-captain-america-fights-crossbones-on-civil-war-set

 Also Jeremy Renner was spotted on set - but  his costume was cloaked in secrecy...

 More Renner set photos @Just Jared

... and here's a look Frank Grillo's Crossbones unmasked. Also via JJ.