The group's principal activities are to design, manufacture, market and lease proprietary projection and sound systems for imax theaters. at 31-dec-2001, the group discontinued the digital projection international segment and its subsidiaries. the group operates in three segments: imax systems, film and other. the operations of the group are carried out in canada, the united states, japan, europe and other countries. imax systems accounted for 65% of 2001 revenues; Film, 25% and other, 10%.