I've been conned on a website HELP?

[Crystal]

I'm really scared! I typed in ' watch movies for free ' in google and I watched a few films ( the perfect man, insidious, hot chicks, and easy a) all appropriate then aload of ads came up such as 'poker' and some websites with girls on it I crossed them off straight away and then a message came up my whole laptop froze and then it said I've been doing porn! Then my webcam came on and I covered it with my hand! it said I've broke the law and I've got a fine to pay I shown my mum and she's getting someone to look at it tomorrow I'm really scared tho? Will I go to jail! Help I haven't even done anything wrong it said the films were free:/ I didn't give any personal deatails btw! Oh and it said my computers locked