Several comments have been left identifying two of the ISM vandals depicted in this post. Please leave comments here if you recognize more of them. If you wish, please email firstname.lastname@example.org with your contact information so we can arrange for you to testify when this matter makes it to court.
ISMers: don't worry, we've downloaded the video, so don't bother trying to remove it. Just relax and enjoy your film festival! We in the Jewish community are happy to help!