There are no images of nudity or sexuality. As an example for something, a man searches "sex" on Facebook and the words homosexual, sexy and a couple other sexual words are shown on screen, however you just see the words, no images.

None

There is actually some profanity throughout this documentary, although nobody says it, the word f*ck is seen many times on screen, uncensored. There is a clip from South Park which has one of the characters saying hell, nothing else though.

update

Drugs, recreational: One verbal reference to

A couple people being interviewed may be smoking or have a drink.

A couple of short news clips of Milly Dowler's parents are shown, these could be upsetting to some viewers.

Although there is nothing directly frightening about this, the idea that anything you do online is being monitored can be terrifying.