If you're needing confirmation regarding your class trip plans for the film, then I would also recommend contacting the theatre to be sure the reservation and payment has already been secure. If not, then I would contact the Shoah Foundation. Hopefully someone will be able to be able to assist you who takes care of large groups, events, etc. Hope this helps.
I would recommend contacting the Shoah Foundation. If they cant help themselves, ask them for directory
Thanks! Your answer is awaiting moderation.