“The Djinn” (*1/2 out of four) was a luckless horror thriller about a mute 12-year old boy (Ezra Dewey) who is left alone at home by his single father (Rob Brownstein) and conjures the title djinn (John Erickson) which leads to an onslaught of (yes) paranormal activity and terror. So sluggish and inert and so little happens that it’s almost bewildering; film is recommended for anyone (such as this critic) who thought any of the “Amityville Horror” or “Paranormal Activity” imitations were too tame. A real bore, despite Julian Estrada’s colorful cinematography.