In 1941 Halsman met the surrealist artist Salvador Dalí and they began to collaborate in the late 1940s. The 1948 work Dali Atomicus explores the idea of suspension, depicting three cats flying, a bucket of thrown water, and Salvador Dalí in mid air. The title of the photograph is a reference to Dalí's work Leda Atomica which can be seen in the right of the photograph behind the two cats. Halsman reported that it took 28 attempts to be satisfied with the result. Halsman and Dali eventually released a compendium of their collaborations in the 1954 book Dali's Mustache, which features 36 different views of the artist's distinctive mustache. Another famous collaboration between the two was In Voluptas Mors, a surrealistic portrait of Dali beside a large skull, in fact a tableau vivant composed of seven nudes. Halsman took three hours to arrange the models according to a sketch by Dali.
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