One of the funniest movies ever. Zero Mostel’s double takes alone are worth the price of admission.
I was living in Juneau in the Sixties when "Forum" finally made it onto television (color TV was an innovation in those days), and remember laughing so hard I literally slid right out of my chair. When I could catch my breath, I called the TV station and requested that they show it again later in the week, and learned that mine was only one of hundreds of such requests they had received. So they played it again, and I fell out of my chair again. One of the GREATS.