Complex sentence: Their father, William Stromberg, is a Grammy nominated film composer, and their uncle, Robert Stromberg, has multiple Academy Awards as Art Director for "Avatar" and "Alice in Wonderland" and is currently directing the Angelina Jolie movie "Maleficent".
Split into simpler sentences: Their father, William Stromberg, is a Grammy nominated film composer. Uncle Robert Stromberg has multiple Academy Awards as Art Director for "Avatar" and "Alice in Wonderland" and is currently directing the Angelina Jolie movie "Maleficent".