This was to be a 1967 or 1968 detective spoof starring Zero Mostel and Julie Newmar, with Akim Tamiroff and one of The Two Ronnies (the skinny one).
It was abandoned.
In a 2013 interview, Julie Newmar was asked why this film was never finished:
“I didn’t have the insight or knowledge of what went on behind the scenes. But I remember it personally being a grave disappointment to me, because I’d taken a lease on a flat in London for two years. I thought I’d go and be part of that scene there, but then I had to leave after six months. It was so much fun working with someone at the talent level of Zero Mostel. He was a genius in comedy and art and painting, and it was such a pleasure to be his foil. I played all the women in the story. His inamoratas.”
Julie Newmar was also asked about the photos seen below:
“They didn’t tell me that there was a cameraman hidden on the set. I knew nothing about it; that was just an exploitation by the producers. Oh well. You would think they would have to have the actor’s agreement on that. Zero Mostel and I were in and out of this faux marble tub for two weeks of shooting. I had no idea a photographer was there. I guess I’m either too nearsighted or was too concentrated in my work. These pictures that Terry O’Neill took are the only history we have of this unfinished film. Actually, the pictures are rather lovely. But I never posed for Playboy.”
You can find more “film nudity that never was” here.
She did pose for Playboy though but perhaps she meant not for that particular instance.
She did pose for Playboy around the exact same time. I believe she was just lying in the interview because she figured no one would know and that’s what celebs do in interviews. Playboy didn’t release the images back then and only released them more recently as some kind of lost photoset. She also was very naked in Mackenna’s Gold from 1969. Most Hollywood actresses are supposed to act very prudish no matter what they do. At least they were supposed to in the past, things may be changing now with all these see-through outfits and the fact that they will need to do a lot to be able to compete in streaming media where naked women are everywhere.