sentences:  In the late 1980s, Universal Studios purchased the film rights for "The Flintstones" and "The Jetsons" from Hanna-Barbera Productions.The result was "", which was released in 1990.In November 2001, screenwriting duo Paul Foley and Dan Forman were brought onboard to revise a screenplay, with Rob Minkoff attached as director and Denise Di Novi as producer.