The leftist radical ideas current in the 1960s and 1970s are expressed in the films discussed in this cinema study guide. The radical film takes extreme and avant-garde approaches to the somewhat publicly taboo topics of sex, social issues, and religion. Among the films discussed, I AM CURIOUS (YELLOW) and SOMETHING DIFFERENT show women in their efforts to free themselves from traditional social patterning, THE QUEEN and TRICIA'S WEDDING give two versions of the homosexual world, and BLACK GOD, WHITE DEVIL, and WEEKEND present radical analyses of the decay of iconography. Other films receiving major elaboration are WARRENDALE, BOY, DAVID HOLZMAN'S DIARY, and INNOCENCE UNPROTECTED. The guide, one of a series from Grove Press, also includes full film credits and a short list of further readings. (CH)