She attended the Ethel Walker School, a girls’ preparatory school located in Simsbury, Connecticut.Later on, she also attended The Chapin School and The Brearley School.
Actressfranchise She made her first theatrical film appearance in Annie Hall in the year 1977 opposite Woody Allen.
She made her first TV show appearance in Somerset in the year 1976 as Avis Ryan. Her routine includes Pilates, gardening, walking her dogs, and running up several flights of stairs a day.
In 1962, her family moved to San Francisco briefly, an unpleasant experience for her.
Later, they moved back east to Connecticut, where she became a student at the Ethel Walker School, facing the same problems as before.
In 1961, Sigourney began attending the Brearley Girls Academy, but her mother moved her to another New York private school, Chapin.
Sigourney was quite rather taller than most of her other classmates (at age 13, she was already 5' 10"), resulting in her constantly being laughed at and picked on; in order to gain their acceptance, she took on the role of class clown.
She did her graduation from Sarah Lawrence College and completed her B. in English from Stanford University in the year 1972.
She did her post-graduation from the Yale University School of Drama in 1974 in Master of Fine Arts.
However, in 1973, while making her theatrical debut with "Watergate Classics", she met up with a team of playwrights and actors and began hanging around with them, resulting in long-term friendships with Christopher Durang, Kate Mc Gregor-Stewart and Albert Innaurato.