Early film production has begun in a small Michigan town Saturday for the tentatively titled Batman vs. Superman flick.

Metamora Township, Mich.'s NBC News affiliate reported that residents near Caley Road received a letter from Crown City Pictures in October notifying them of the filming.

Since October, residents near the location, which is a former Girl Scout campsite that was closed in 2006, have seen construction and security crews working on developing the area for the film.

It is unclear what the site will be used for in the film or for how long, but according to the Crown City Pictures letter, after production has wrapped on the location, the sit will be cleaned up and returned to its original state.

Filming isn't set to officially begin until April and lasting all summer, as Michigan will be the first location in a long line of production.

The Michigan Film Office approved the film's production team's bid to film in the state last summer, starting in metro Detroit before moving throughout the rest of the state.

The state's filming office gave the Batman vs. Superman filmmakers a $35 million on $131 million incentive on projected in-state expenditures, according to MLive, a Michigan based news publication.

Jennifer Garner, actress and Ben Affleck's wife, told Detroit Sports 105.1 that she would be joining her husband in Michigan all summer while he films some of his Batman scenes.

Oscar-nominated production designer Michael Wilkinson, who has worked with director Zack Snyder for all of his works, told "Henry Cavill News" that he would be in Detroit through December for the film's production.

He also said that Henry Cavill's Superman suit has been "tweaked."

The Man of Steel sequel hits the big screen on May 6, 2016, which was pushed back from its original date of July 7, 2015, but Warner Bros. said the reason was to allow Snyder more time to complete the filming, which will no doubt use a lot of visual effects.