Complex sentence: The category's original name was Best Art Direction, but was changed to its current name in 2012 for the 85th Academy Awards, with the Art Director's branch being renamed the Designer's branch.
Split into simpler sentences: The category's original name was Best Art Direction, but was changed to its current name in 2012 for the 85th Academy Awards,. This change resulted from the Art Director's branch of the Academy being renamed the Designer's branch.