Pretty much everyone who was everyone (or no one) in the '60s has a cameo, from Lance Loud (of the proto-reality TV show "American Family") to David Weisman, director of "Ciao Manhattan" (1972), the seamy, quasi-biographical film about Sedgwick's druggy collapse in which she starred.
The Vitra exhibition starts with a detailed biographical display and regular showings of previously unseen film footage shot by Nathaniel Kahn, Louis's son and the director of "My Architect, " the movie about his father.