Peter Ustinov as Poirot, Cole Porter soundtrack, beautifully shot under Mediterranean sun.  This be a gem.

Trying to find how a millionaire wound up with a phony diamond brings Hercule Poirot to an exclusive island resort frequented by the rich and famous. When a murder is committed, everyone has an alibi.  Director: Guy Hamilton   Writer: Anthony Shaffer (screenplay), and 2 more credits »

Oak Park Library has this, as do two others — Grande Prairie and Oak Lawn — in suburban Chi.