Desc: Generations: Cuyahoga Valley National Park: Directed by Duilio Mariola. With Mike Olszewski. Generations is the first full-length broadcast documentary about 34-year-old Cuyahoga Valley National Park. It showcases the park's 33,000 acres through archival video footage, filming of the park's better known locales, recent interviews, oral histories and memorabilia provided by park visitors.