Continuing to reside in Cambridge, he affected the appearance of an 1890s Edwardian dandy, similar to that of the British Teddy Boys, was a successful racetrack bettor and lived what was described as a Bohemian lifestyle.
The film premiered at the Paris Cinémathèque in July 1965, making Warhol and Sedgwick darlings of the international celebrity circuit, with Wein and Piserchio also basking in the spotlight.
Little more than two years later, in the wake of Warhol's diminished activity following his near-fatal shooting by Valerie Solanas on June 3, 1968, Wein also departed and began traveling the world, with particular emphasis on the Far East, and managing fringe nightclub acts which usually had some unusual, strange or whimsical characteristics, as well as focusing on the occult.
birthday in 2008, the year he died in Del Mar, California, fifteen months after the release of Factory Girl, director George Hickenlooper's cinematic retelling of Edie Sedgwick's (Sienna Miller) brief life, with particular emphasis on her time with Warhol (Guy Pearce) and Wein, whose portrayal by Jimmy Fallon was tepidly noted by critics as being "convincing" and "adequate".
Wein directed the 1971 musical New Age documentary film Rainbow Bridge, which concluded with a concert of Jimi Hendrix playing in Maui near Haleakalā.