Nielsen Writing Autobiography

The Danish-born star is putting pen to paper for her upcoming book, Red Flags, and she promises to reveal all about her relationships, alcohol addiction and drug problems.

She tells Britain's Daily Telegraph, "It's going to be a very open and honest and at times harsh book. I'll be talking about my whole life - the good times as well as the difficult years.

"It will have advice for women who are going down the wrong path like I was and what they should do to stop."

The 47 year old, who was married to Stallone for two years in the 1980s, has long struggled with booze and drug problems, and checked into rehab in 2007.