Complex sentence: Capra contributed to the screenplay for the 1990 movie "Mindwalk", starring Liv Ullman, Sam Waterston, and John Heard, which was loosely based on his book, "The Turning Point".
Split into simpler sentences: Capra contributed to the screenplay for the 1990 movie "Mindwalk", starring Liv Ullman, Sam Waterston and John Heard. The film is loosely based on his book, "The Turning Point".