Actually, that could be good if he stopped it a few key points, like just before Charlton Heston's speech, and asked students to look closely at the curtain before which Heston was speaking.
<feeble joke alert>
It would be funny to have Michael Moore attend a screening in which a conservative had control of the PA system. He'd invite the audience to take note of the backdrop behind Charlton Heston, whereupon Michael Moore would yell out:
"Pay no attention to the curtain behind the man!"</feeble joke alert>