Desc: Quy Luật Tự Nhiên: Directed by Rob Reiner. With John Cusack, Daphne Zuniga, Anthony Edwards, Boyd Gaines. Walter Gibson is a university freshman going through a dry spell. His old buddy arranges a "sure thing" for him in California. Gibson and his classmate Allison then take a long road trip out to Cali, and both foil each other's plans.