导演把他的联想汇编技巧运用于 Devo 乐队的曲子。

　　本部拍摄于1958年的实验先锋电影短片，极具拼贴主义风格。取材自B级片、新闻短片、软性色情片段、新奇的电影短片以及旧好莱坞电影的镜头等。影片中包含了许多毫无关联的空镜头，动物照片混杂着人类的图像，来往的行人穿插拥挤的车流，暴力以及战争。影片构造出严重的失衡感，颠覆了以往的审美取向，却创建出拼凑片段中的独特拼贴主义风格。

Bruce Conner described Looking for Mushrooms in the 1975 Film-Makers' Cooperative Catalogue as a “[f]amous documentary containing full information. Special effects by Isauro Nava, Rancho del Cura, Huatla de Jimenez, Mexico. Sound by John Liniment and frenz”.
In 1962, Bruce Conner left San Francisco and moved to Mexico, apparently intending to “wait out the impending nuclear holocaust” (1). He spent about a year in Mexico before running out of cash and patience, and returning to the United States. During his year in Mexico, Conner hosted psychedelic guru Timothy Leary, who he had met on an earlier visit to New York. Conner and Leary occupied themselves with mushroom hunts in the Mexican countryside. It's not clear whether their hunts were successful. But Conner's staccato home-movies of their walks – combined with movies of previous mushroom hunts in San Francisco – became his film Looking for Mushrooms. The film rushes through the rustic landscape of rural Mexico, flitting past houses and through a crumbling graveyard. It's quite a contrast to Valentin de las Sierras (1967), Bruce Baillie's serene portrait of life in a Mexican village. But the quality of the image is similar, sun-blasted colours bleached to pastel.
Conner cut Looking for Mushrooms down to 100 feet in 1965 in order to fit it into an endless-loop cartridge for continuous projection. In 1967 he added a soundtrack by The Beatles (“Tomorrow Never Knows”). Thirty years later, Conner revisited Looking for Mushrooms, extending it to 15 minutes by repeating each frame five times and adding a new soundtrack – “Poppy Nogood and the Phantom Band” (1968) by Terry Riley. Later, Conner exhibited Looking for Mushrooms as an interactive sculpture, threading a print on a Moviscop viewer for museum patrons to view on their own.

Bruce Conner’s most celebrated film for a reason: it takes historical moments that were replayed over and over on television—chilling repetition of Kennedy assassination coverage—and repurposes them into a meditation on how the media tries to exert authority and apply a sense of order to the anarchic. And though it may sound perverse to say so, the film is also—not incidentally—a thrill to watch. -- The A.V. Club