Scene from a Ceop film to warn children to be careful about what they upload and how to seek help if they face problems online.
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CEOP releases film about online safety for children

8 February 2011 Last updated at 02:48 GMT

A new drama by the Child Exploitation & Online Protection Centre (Ceop) warns children about the dangers of uploading material to websites.

It features a girl who sends her boyfriend photos of her naked.

He forwards them to a friend and the images are posted on a website.

The aim is to limit the amount of "sexting" carried out by teenagers.