The 50-odd performing groups in the eight week “festival of Chicago’s international arts” includes a dozen theater companies; those performing October 11 through 17 are described below. On nights when only one theater company is listed here, be assured at least one other program of music, dance, or poetry is also planned, with discount prices available to viewers buying a ticket to all performances on a single night. (A pass to the whole festival costs $40.) All events (which are subject to change) take place at the Blue Rider Theatre, 1822 S. Halsted; for more information, call 733-4668.

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ABIOGENESIS MOVEMENT ENSEMBLE This group, which fuses dance and drama influences into a distinctive style of movement theater, performs its environmental-awareness piece Wasted: A Brief History of Garbage in a matinee intended to reach young audiences. Viewers are urged to “BYOG”–bring your own garbage to be incorporated into the show. 2 PM. $6.