No, they are neither Disciples of the Buddha nor do they care about the conducts of the Noble ones (Althought not having looked the movie), if socializing in such ways and touch even lay people.
Touching a living being in aversion, beating, is a violation of the precepts. Touching a living being out of lust, for socialising purpose is a violation of the precepts.
Touching the head of others is very respectless, it migh be out of this, that people show in this way there respect, a cultural costum.
For Tibetans for example very usual, but again, it's not the costum of the Noble Ones and has nothing to do with Brahmacaria (holly life)
And to do such as "Exorcism", if that was the case, that is not only simply betray but called "livelyhood like animals" and not allowed to do for laypeople generally like a "doctor".
[Note: This is a gift of Dhamma not meant for commercial purpose or other wordily gains]