One Night of Shakespeare

This coming Sunday, July 3 10,000 British school children in 400 schools will all perform Shakespeare simultaneously. Organizers hope to enter the Guinness Book of World Records for most Shakespeare performances in a single night. What an odd record :).

Apparently, "Pupils will perform their own interpretations of shortened versions of some of Shakespeare's plays, directed and produced by their teachers." Own interpretations of shortened versions? Exactly how much of the original has to remain in order for it to still be Shakespeare?