Is this illegal and if so, what can I do about it?

[Negatoria]

I broke up with my boyfriend.
He got very mad, after blackmailing me to stay with him, he posted a video of me online.

A sexual one, where I was only 17 at the time.
243 people had viewed this video. But it has now been removed.

Proof of links have been sent to various people over facebook and whatever else.

Is there anything I can do about this?

He has also stolen a few of my belongings which mean a lot to me, I went to his house to get them. His flatmate Eden let me in the door.

Morgan (The ex boyfriend) wouldn't give me my stuff back, and after threating to call the police (I encouraged him to do so, but he didn't)
He started yelling at me 'Get out of my house' to which, I refused because I wanted my belongings back.

After I wouldn't leave he forcefully picked me up and as I fought, he dragged me out of the house, leaving a few bruises on me, and slammed me into the door way.

One of the other flatmates Mikey had to drag Morgan off of me. Then Eden said I should leave. So I left and didn't have anything I own back.

[retdetsgt]

The stuff you left there is a civil matter, the police can't help you on that. You used the term "flatmate", are you outside the USA? You will have to contact your local police to find out about the video, the law varies from place to place.

If he assaulted you, you can report that as a crime though.

[Legoate]

The best advice I can give you is to leave whatever is at his house there, and stay as far away from this loser as you can- trying to forget the two of you ever met.

And don't make any more sex videos that you don't want to have become public domain.

[Negatoria]

I never gave consent to this video, it was made without my knowledge

[Samuel]

Probably best to ask your local authorities on what your options are...