I watched it when I was little and again recently as an adult. It still disturbed me. Priests must have a strong faith in Christ and a deep love for their fellow man to effectively train for and do these things. I could never. No way. Too scary. I don’t even like to thing about these things.
Don’t be scared of the devil nor intimidated by him. If you belong to Christ, you are His child, and He is infinitely stronger than the one the Father cast out.