Ally has battled bulimia.
Ally became pregnant while doing the film One Night Stand by Talia Shire.
She turned down the role of Charlie in Top Gun. Kelly McGillis eventually played the part opposite Tom Cruise.
Ally wrote a book of poems entitled Yesterday I Saw the Sun: Poems. It was published by Summit Books in February 1991.
In the 1990's, Ally was treated for sleeping pill addiction. She drew from this experience in her portrayal of a drug-addicted photographer in High Art.
In 1980, Ally graduated from Columbia Grammar and Preparatory School in New York City. She also attended the University of Southern California.
Ally wrote the book She Was Nice To Mice when she was just 12.
Ally's husband is the nephew of the actress Angela Lansbury.
Ally's mother came out as a lesbian in 1980.
Ally's mother is Jewish and her father is Catholic.
Ally was a bridesmaid at the wedding of Bruce Willis and Demi Moore.
Ally has a daughter named Rebecca Elizabeth.
Ally is the only female to have played the lead role in the stage musical Hedwig and the Angry Inch.
Ally danced with the American Ballet as a child.
Ally previously dated actor Eric Stoltz. She also dated Woody Harrelson. She previously dated Bon Jovi guitarist Richie Sambora.
Ally's mother Charlotte Sheedy is a literary agent. Her father is John Sheedy and she is the eldest of three siblings. Her brother Patrick is a producer.
Ally has previously battled an addiction to prescription medication.
Ally has been married to David Lansbury since 1992.
Ally is 5'5" tall.
Ally: (on old best friend Demi Moore for her surgically-enhanced figure and roles in Striptease and Indecent Proposal) Her choices were against all of my principles and all the political philosophies I was brought up with. On a deep level, it offends me.
Ally: I'm not some morally invincible human being -- I did do some of those things. I did go out and change my hair color and put on makeup. The whole thing was a ridiculous exercise, it really was.
Ally: I just feel like with guys, the woman is the accessory. Almost always it is her role to compliment the man's prowess, his masculinity, his strength. Even the position you have to take -- you're lying down and he's on top.
Ally: I think that acting involves doing your job so well that you are able to help the viewer identify with the character.
Ally: I'm very happy with the work that I do, and I have a lot of time for my daughter, and really, I don't want to be a superstar because it takes a great deal of effort to maintain that kind of life once you've created it.
Ally: The pursuit of fame becomes your career, and you have to spend all your time trying to look good.
Ally: I hit my 30s and all of a sudden I was not spending so much time thinking about my weight, because there were too many other things going on.
Ally: The fact is, nobody gets off drugs unless they really want to, and I really wanted to.
Ally: As soon as I hit puberty and my body started changing, I was really not in the running anymore to be a professional ballerina.
Ally: I started writing because I used to tell stories to the children who lived nearby and when I was six I started writing them down. I write poetry and plays, too, and writing is important to me. It is important for me to express my feelings and thoughts. If I'm feeling angry or wonderful or upset or happy I just write it out and reread the feelings over and over again. When I'm depressed I read something I wrote when I was happy and I can feel a great lift in my spirits. I love writing.