René Magritte is the biggest Magritte archive anywhere and most of the work is directly from the collection of the artist's widow, Georgette Magritte, and from Irene Hamoir Scutenaire, who was his primary collector. Additionally, the museum includes Magritte's experiments with photography from 1920 on and the short surrealist films he made from 1956 on. Another museum is located at 135 Rue Esseghem in Brussels in Magritte's former home, where he lived with his wife from 1930 to 1954. A painting, "Olympia" (1948), a nude portrait of Magritte's wife by Magritte, was stolen from this museum on the morning of 24 September
Action painting research tends to put the exile-surrealist Wolfgang Paalen in the position of the artist and theoretician who used the term "action" at first in this sense and fostered the theory of the subjective struggle with it. In his theory of the viewer-dependent possibility space, in which the artist "acts" like in an ecstatic ritual, Paalen considers ideas of quantum mechanics, as well as idiosyncratic interpretations of the totemic vision and the spatial structure of native-Indian painting from British Columbia. His long essay "Totem Art" (1943) had considerable influence on such artists as Martha Graham, Barnett Newman, Isamu Noguchi, Jackson Pollock