Synopsis: Lieutenant William F. Kinderman investigates a series of gruesome murders that share similar features to those of “The Gemini Killer”, a serial killer who had been executed 15 years previous.

Director: William Peter Blatty

Runtime: 110 minutes

MPAA Rating: R

IMDb: 6.3/10  Rotten Tomatoes: 55%

Netflix (US): No

Jump Scares:  11 (2 major, 9 minor)

Jump Scare Rating: More focussed on character development than delivering jump scares. The Exorcist 3 does however have one of the most well known movie jump scares which occurs just after the 76 minute mark.
twoandahalfstar

WARNING: The following may contain spoilers

Jump Scare Times

2:47 – The doors to the church are blown open by a sudden gust of wind.

6:50 – A window is broken an a man falls out of a house.

19:52 – The sliding screen to the confession booth is opened quickly, startling Lieutenant Kinderman.

45:51 – Alice runs into Kinderman as he turns around.

59:42 – Damien makes a horrible roaring noise.

1:13:32 – There is a loud clattering noise as Nurse Amy is about to enter a room.

1:14:20 – A man sits up in his bed and yells at Amy. [Video]

1:16:32 – A shrouded figure comes out of the room just behind Amy holding a large pair of scissors. [Video]

1:27:33 – Damien yells NO! at Kinderman.

1:30:34 – Kinderman bursts into a darkened room where a nurse is seeing a patient.

1:38:34 – The priests ritual book explodes while he is performing an exorcism.

(Major scares in bold)

Download a .srt file of the jump scares in The Exorcist III [more info].