Is there a way to stop my school using my image?

Hi, my high school is doing a farewell year 10 2010 (rather pointless since we'll be back next year) assembly that will include a sideshow etc, Ive requested that images of me don't appear in the sideshow but i have seen the sideshow when it was part way done and it featured several images of me and people who i was once friends with. I don't want the images featured because
1. it features images of me with people who due to a chain of events im no longer friends with and haven't spoken to in months and
2. because there are pictures that will raise awkward questions from my family that i really don't feel up to having asked.
Ive requested that they dont be used but they have been is there a way that i can stop my school using them because they technically dont have the permission to use my image in school media due to me not handing in my school media note which allows them to put my image in the school magazine or be taken for the paper school events and cant legally do such things without getting it. which the school seems to be ignoring
Also before some one says this is in the wrong section this was the recommended section
 
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