I am looking for a european film

I remember a film about a woman pretending to be a man , she is hired by a rich guy to be his bodyguard (or valet ) . But she is in fact a con artist , who was hired by the rich guy ex’wife . The rich guy ex’wife wants his money and she made a plan that everyone to believe that her ex’s husband is gay . The con artist (I don’t remember exactly) works as magazine publisher .

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