Nearly unrecognizable while in full costume and makeup, Amy Adams was hard at work on the set of her latest project in Berkeley, California this weekend (June 25).

Wearing a modest all-grey ensemble with a short, wavy brunette hairdo, the Oscar-winning actress made her way from the trailer area to the shoot's locale - with her latest job being a part of "There Will Be Blood" director Paul Thomas Anderson's controversial, religious cult movie tentatively titled "The Master".

According to IMDB, the new project is "a 1950s-set drama centered on the relationship between a charismatic intellectual known as 'the Master' whose faith-based organization begins to catch on in America, and a young drifter who becomes his right-hand man."

Due out in 2013, the sure to be compelling picture boasts a star-laden cast including Joaquin Phoenix, Philip Seymour Hoffman, Juliette Lewis, Laura Dern and Elisabeth Moss.

Enjoy the pictures of Amy Adams on the set of her new movie in Berkeley, California (June 25).