sex ring are being made into a movie - but her client list will remain a secret.Anna Gristina, originally from Kirkliston, West Lothian, famously refused to give up her contacts book to cut a plea deal in a case that saw her dubbed the “Millionaire Madam” almost a decade ago.Now the mum-of-four has confirmed a prime time TV movie based on her life is set to air in the US, but her former customers - alleged to have included celebrities and even royalty - will not be compromised.The 53-year-old