'Superman' star Margot Kidder died from 'self-inflicted drug and alcohol overdose'

The actress was found by a friend in her Livingston, Mont., home on May 13.

The AP obtained a copy of the report, and says Kidder, 69, died as the "result of a self-inflicted drug and alcohol overdose".

Kidder's daughter, Maggie McGuane - during a chat with the Associated Press - said she and the rest of their family wanted to be honest about her death to avoid the "cloud of shame".

"It's a very unique sort of grief and pain", she said.

If you are struggling and need to talk to someone, you can contact Samaritans 24/7.

Actress Margot Kidder, best known as Lois Lane in the "Superman" film franchise, passed away in Montana in May.

Kidder's death is one of several high-profile suicides this year that include celebrity chef Anthony Bourdain and fashion designer Kate Spade.

Most recently, Margot appeared in The Neighbourhood, which came out earlier this year.

The actress found fame starring alongside Christopher Reeve in the Superman films of the 1970s and 1980s.

Born Margaret Ruth Kidder on October 17, 1948 in Canada's Northwest Territories, she grew up in a small town without a movie theatre.

She also appeared in the film The Great Waldo Pepper and the children's TV series RL Stine's The Haunting Hour.

Kidder suffered from bipolar disorder, according to People Magazine, which often caused episodes of erratic behavior that landed her in the tabloids with some frequency. The Canadian-born actress had always been open about drug and alcohol addictions, which she said partially triggered her very public breakdown in 1996.

Five ambulances were also called in seven months. "She was really a blazing energy".

If you or someone you know is dealing with suicidal thoughts, you can call the National Suicide Prevention Lifeline at: 1-800-273-8255.

Vanessa Coleman