Between Time and Timbuktu (1972)

A poetastronaut is shot through an area of space called the Chronosynclastic Infundibulum He is duplicated into infinite copies of himself each of whom finds himself in a bizarre situations on a different world These scenarios are all derived from the novels and short stories of Kurt Vonnegut Jr including Cats Cradle Welcome to the Monkey House Harrison Bergeron and Happy Birthday Wanda June