Just watched it for the 4th time, it's an evergreen Horror Film!

Rating: 10/10 (2 September 2016)

This film is the perfect horror film which works on many levels. From dealing with demonic possession, to commentary on loss of faith, to maternal love for a child, to psychological aspects of mind and the most effectively the family drama!
Each and every character has his/her own depth and their own approach to the situation. Here we see Regan becoming victim of the demon Pazuzu as he possesses her and her mother Chris' subsequent breakdown and desperate attempts to save her child. We also see Karras handling Regan while dealing with his own faith and loss of his mother and Father Merrin who already knows where and when he is going to meet the demon.
Talking about the technical aspects, the film succeeds.
Cinematography is great and so is the lighting technique.
The screenplay couldn't have been better.
The sound mixing is excellent and disturbing.
The background score is really creepy and atmospheric.
The direction... Hats Off!
And performances... Extremely Realistic! The scene where Chris meets Father Karras for the first time and asks more about him, she comes to the point of why she called him, and then she mentions that someone really close to her needs help, and then the way she says that the 'someone' is her daughter sent creeps down my spine and brought tears in my eyes.
It felt like William Freidkin didn't visualize the script; it feels like he is capturing the moments in camera and editing it to deliver us the most realistic and magnificent horror film of all time.
When I watched it for the first time, I literally passed out for some seconds and remained scared for the next two months. I was 14 at the time and now I am 18.
After watching it for the fourth time and this time with subtitles, the drama portion of the film with lots of character depth surfaced. So it is more than a horror film that has passed the passage of time and is and will always remain evergreen Horror Film.
10 out 10 stars.