director, David W. Padrusch ; producers, Matt Koed, David W. Padrusch ; writers, Matt Koed, Sara Padrusch, and David W. Padrusch ; produced by Limulus Productions, Inc. for the History Channel
a Warner Bros. Pictures presentation in association with Legendary Pictures and Virtual Studios ; a Mark Canton/Gianni Nunnari production ; a Zack Snyder film ; produced by Gianni Nunnari ; produced by Mark Canton ; produced by Bernie Goldmann, Jeffrey Silver ; screenplay by Zack Snyder & Kurt Johnstad and Michael B. Gordon ; directed by Zack Snyder
Warner Bros. Pictures ; Hollywood Gang Productions ; Atmosphere Entertainment ; Legendary Pictures ; Virtual Studios ; produced by Mark Canton, Bernie Goldmann, Gianni Nunnari, Jeffrey Silver ; screenplay by Zack Snyder & Kurt Johnstad and Michael B. Gordon ; directed by Zack Snyder