Andy Warhol and Mario Montez filming Hedy (via Continuo)
 
On the night of January 27, 1966, the actress Hedy Lamarr was arrested for stealing $86 worth of merchandise from the May Company department store in Los Angeles. She was not driven to crime by a condition of need: police told reporters she had $14,000 in checks when she was arrested.

Andy Warhol and screenwriter Ronald Tavel knew a good story when they saw one, and Hedy (1966)—with Lupe and More Milk, Yvette, part of the “Hollywood trilogy” about movie actresses Warhol made that year—advanced down the Factory’s film production line. The lovely Mario Montez starred in the title role, while on the soundtrack, Lou Reed and John Cale dramatized Hedy’s inner life with an ominous, bottomless noise.
 

via Toronto International Film Festival
 
Richie Unterberger’s authoritative White Light/White Heat: The Velvet Underground Day by Day files the Hedy soundtrack under February 1966:

Only Lou Reed and John Cale are heard on the soundtrack to Hedy, a Warhol film inspired by press reports of the arrest for shoplifting of 30s and 40s actor Hedy Lamarr. None of the Velvets appear in the film, but the cast does include the two most celebrated dancers of the Exploding Plastic Inevitable – Gerard Malanga and Factory newcomer Mary Woronov – as well as another EPI dancer, Ingrid Superstar, and Cale’s old friend Jack Smith.

The Hedy score is closer in spirit to the avant-garde recordings Cale and Angus MacLise appeared on during 1963-1965 than anything The Velvet Underground are currently playing. The music builds around an instrumental storm of shrieking, rumbling viola, guitar, and a rickety piano that sounds like it hasn’t been played since doing time in a 19th century saloon, while Cale’s ‘thunder machine’ – the sound made by the head of a Vox Super Beatle amp being dropped on the floor – occasionally cuts through everything else with hair-raising, high pitch bursts of feedback. This might be the closest approximation of how the nascent Velvet Underground sounded when they played, with Angus MacLise, behind the screen at Piero Heliczer’s ‘happenings,’ but those days are rapidly becoming a thing of the past.

If you find yourself in Pittsburgh, the Warhol Museum is screening Hedy every day through January 22. Below is the excerpt from Reed and Cale’s soundtrack that surfaced on the bootleg compilation Screen Test: Falling in Love with the Falling Spikes.