Do you think that films, in general, influence society or does society influence what is presented in films?

I think it's a bit of both.

http://www.google.com/search?rlz=1C1GGGE_enUS379US379&aq=f&sourceid=chrome&ie=UTF-8&q=films+influence+society

http://www.google.com/search?hl=en&rlz=1C1GGGE_enUS379US379&q=do+films+reflect+or+influence+society&aq=1b&aqi=g-b2&aql=&oq=society+influence+film