
I remember seeing this in a packed theatre in the 70s and it was a fun, raucous crowd. At one scary point, someone in the audience yelled- "Don't go in in that room, honey!" And of course a demon appeared and the audience screamed...and then it got quiet and something akin to "I told you not to go in there" was uttered and the audience screamed with laughter.
But, I digress. It did have its moments and fright, and the musical score by Lalo Schiffrin was nominated for an Oscar. The Main Theme alone is eerie. It's definitely a fun film for your fright night. An afternoon scare. Enjoy!