Joan Fontaine herself is critical of this strange 1950s film where miscast actors, utter 'one-liners' that are good AND bad.
It was meant to be be 'cool' ~ the artistic/rich side of San Francisco, but apart from a few establishing shots its all done 'on the lot' or anywhere in California.
Fontaine repeats her (predictable) facial expressions endlessly (the dance with Olivier in 'Rebecca') and the actual plot stretches the bounds of possibility too far; but then again it was meant to be 'cinematic froth'.
Howard Hughes (the force behind it) meddled with the end, so this DVD copy resolves with a cheap visual joke, rather than the original end (spoiler alert) of a car crash and Fontaine using her 'charm' to entrance her doctor to get another rich man, having been found out by the one she already betrayed.
It's all sugary melodrama, and Fontaine never had the acting skills of Crawford or Davis (or her sister De Havilland) BUT I recommend it anyway!