We'd rather not speculate over how much of Best Friends is autobiographical. We'll just note that this story of a male-female screenwriting team was written by real-life married scenarists Barry Levinson and Valerie Curtin. Lovers as well as collaborators, scriveners Richard Babson (Burt Reynolds) and Paula McCullen (Goldie Hawn) decide to make their union legal. Predictably enough, they discover that their relationship goes straight downhill after they say "I do." The stars are far less interesting than the supporting cast, including Jessica Tandy and Barnard Hughes as Hawn's parents, Audra Lindley and Keenan Wynn as Reynolds' folks, Ron Silver as an avaricious producer (no names, please!), and Richard Libertini as a Mexican justice of the peace.