“My Best Friend’s Exorcism” (**1/2 out of four) was a mindless but somewhat entertaining horror comedy set in 1988 about two friends (Elsie Fisher and Amiah Miller) who have to grapple with the fact that an exorcism is growing in one of their bodies and the social/physical/psychological uncomfortabilities this could result in ’80’s high school. Affectionately done nostalgia piece for the ’80’s with plenty of cheeky set design and costumes and soundtrack hits but not quite enough for a satisfying feature-length film, as story starts to grow thin after a point. A loose adaptation of Grady Hendrix’s horror novel and worthwhile for his fans and ’80’s fanatics.