The most obvious place to research in the U.K. is the BFI Library at 12
Stephen Street, London re. the leading films on your list. As for SAPPHIRE,
I think an article appeared on the film in SCREEN about a decade ago. The
author may have been Carrie Tarr but I'm not certain.
 Anecdotal point."SAPPHIRE"only appears in a brief pre-credit sequence played
by glamor queen Yvonne Buckingham, a white actress. She would have her brief
Warhol 15 minutes of fame by starring in THE NAKED TALES OF CHRISTINE
KEELER, a production shot in Denmark almost immediately after the actual
crisis and dating SCANDAL BY many, many years.
   Good hunting!
     Tony Williams
 
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