Spoke English, French, and Italian fluently.
From the mid-50s she emerged as one of the finest dramatic stage and screen actresses of her country.
One of Ingmar Bergman's favorite actresses. They made 10 movies together: A Dream Play (1963), The Magician (1958), After the Rehearsal (1984), Winter Light (1963), Brink of Life (1958), The Rite (1969), Wild Strawberries (1957), The Silence (1963), Hour of the Wolf (1968) and Cries & Whispers (1972).
She was considered for the role of A. in Last Year at Marienbad (1961), but Delphine Seyrig was cast instead. Ingrid later went on to work with Alain Resnais in The War Is Over (1966).
She took ballet lessons as a child.