In the late 1980s, Morton Downey Jr. skyrocketed to infamy as the star of a ludicrously combative talk show on which our host smoked incessantly, got into screaming fights with guests, and made his points in the filthiest way possible. The flatteringly titled documentary Evocateur tells the Morton Downey Jr. story in all its repulsive glory, with jaw-dropping show clips, sharply drawn animation, and even cruel “celebrity” readings of the man’s postcollegiate poetry used to paint a garishly entertaining portrait of one of the ugliest Ugly Americans ever. You’ll laugh, you’ll cry, you’ll gape in horror. (Grand Illusion, 1403 NE 50th St,, 7 and 9 pm, $8, June 28–July 3)