Additionally, it seems that some of the scenes are cyber-scanning in extras for some shots that couldn't be completed due to the snowfall.
Speculation exists that the extra days were added in anticipation of the end to the WGA strike, which would allow the film to re-write some scenes and then re-shoot those new scenes.
Watchmen, based on the award winning graphic novel by Alan Moore, is set in an alternate 1985 America where costumed heroes are a part of the world's history, and the "Doomsday Clock", which measures the tension between the USA and the U.S.S.R. is constantly at five minutes to midnight. Rorschach, a vigilante who refused to retire when his teammates did, is drawn out by the murder of one of his colleagues, and pulled into a world-wide conspiracy with terrifying implications for the future of mankind.
Watchmen stars Patrick Wilson, Billy Crudup, Jeffrey Dean Morgan, Jackie Earle Haley, Malin Akerman, Matthew Goode, Stephen McHattie, Carla Gugino and Matt Frewer. The film opens across America on March 6th, 2009.