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4-year-old Vivienne Jolie-Pitt has already scored her first paying gig ... and TMZ has learned she's raking in a helluva lot more than you made on your paper route back in the day.

Brad Pitt and Angelina Jolie's daughter is set to co-star with her mom in a movie called "Maleficent" -- and according to a minor's contract filed with the court, little Viv commands $3,000/week!

On top of that ... she gets a per diem of $60/day. That's a lot of juice boxes.

FUN FACT -- Vivienne plays the role of "Young Aurora" -- but another little actress, India Eisley, scored the role of young Maleficent ... Angelina's character in the movie.