The film is based on the premise of non-violence and compassion toward an attacker which are core foundations within the art ....
Non-violence and compassion toward your attacker is a good way to get yourself killed or seriously injured.
The peace of Aikido is an inner peace of the individual that comes from learning the martial ability of Aikido.
Also pacify according to; Merriam-Webster dictionary, http://www.merriam-webster.com/dictionary/pacify
a : to allay the anger or agitation of : soothe
b : appease, propitiate
a : to restore to a tranquil state : settle
b : to reduce to a submissive state : subdue
Tomiki style Aikido has competition.
Good luck on the movie.