Jewison was also a WW2 veteran.  He served in the Royal Canadian Navy. The Russians Are Coming, The Russians Are Coming was a funny movie with a great cast.  

As a poker enthusiast, my favourite Jewison film is The Cincinatti Kid.
The cast alone is spectacular:
Steve McQueen
Edward G. Robinson
Karl Malden
Ann-Margret
Tuesday Weld
Rip Torn
Cab Calloway
Jack Weston
Plus a host of other familiar faces. Also, like In The Heat Of The Night, a theme sung by Ray Charles.

When I was a kid I saw Jesus Christ, Superstar.  I had a profound effect on me and still does.  I promised myself if I ever met Norm Jewison I would ask him about the final scene where a small figure appears at the bottom of the screen.  Was it an errant cameraman, was it symbolic of Christ rising, was it, was it, was it?  Later highdef versions allowed for an image of a Sheppard.  I was fortunate enough to meet Norm at a private birthday party.  Here was my chance!  I had been waiting over 45 years for this moment.  I was very nervous.  He was delightful.  He looked at me with those mischievous eyes and said "it is whatever you want it to be".  I felt like Ralphie when he learns secret of Little Orphan Annie's decoder pin. But all in all, in was great meeting and hanging out with him that evening.