Complex sentence: His family is heavily involved in the Hollywood make-up business, in 1917 his grandfather George Westmore had created the first studio make-up department, and Michael's father was a make-up artist for "Gone with the Wind".
Split into simpler sentences: His family is heavily involved in the Hollywood make-up business. In 1917 his grandfather George Westmore had created the first studio make-up department, and Michael's father was a make-up artist for "Gone with the Wind".