After conducting an affair with her chauffeur (Robert Shaw) in Alan Bridges' "The Hireling", her aristocratic character terminated it, deeming love between their unequal stations impossible
As a sex-starved widow in "The Sailor Who Fell from Grace with the Sea", adapted from a novel by Yukio Mishima, participated in extremely explicit love scenes with Kris Kristofferson
Joined Omar Sharif and Ava Gardner in the cast of the ABC miniseries "Harem", playing Lady Ashley
Reteamed with Mitchum for "The Big Sleep"
American TV debut as Estella in "Great Expectations" (NBC)
Became a member of the National Theatre Company, appearing in "The Recruiting Officer" and Arthur Miller's "The Crucible"
Headlined ABC miniseries "James Michener's 'Dynasty'"
Performed one-woman show "Sarah Miles Is Me" at San Francisco's American Conservatory Theatre
Acted in Michelangelo Antonioni's "Blow-Up"
Acted opposite Burt Reynolds (his first big role) in "The Man Who Loved Cat Dancing"; the death of her business manager David Whiting during filming brought her adverse publicity
Played an Irish innocent in Desmond Davis' "I Was Happy Here"
Played Katherine Armstrong in "Masterpiece Theatre" presentation of "Dandelion Dead" (PBS)
Portrayed Robert Morley's daughter in "Those Magnificent Men in Their Flying Machines"
Reprised Mary of Scotland for London production of "Vivat! Vivat Regina!"
Starred opposite Robert Mitchum in David Lean's "Ryan's Daughter", written by Bolt; earned Oscar nomination as Best Actress
TNT movie "A Ghost in Monte Carlo" reteamed her with co-star Christopher Plummer
Acted in and performed the song "The Alphabet Soup" for Michael Radford's "White Mischief"
Acted in brother Christopher's "Priest of Love"
Acted in Joseph Losey's final film, "Steaming"
Broadway debut, "Vivat! Vivat Regina!"
Feature film debut, "Term of Trial", as a precocious student who accuses her schoolmaster (Laurence Olivier) of sexual misconduct
First starred as Mary of Scotland in husband Robert Bolt's "Vivat! Vivat Regina!" at the Chichester Festival
London stage debut, "Dazzling Prospect"
Played the mother in John Boorman's "Hope and Glory", nominated for an Academy Award as Best Picture
Portrayed another Lady (Sybil) for ABC miniseries "Queenie"
Portrayed title role in Bolt's sole directorial effort, "Lady Caroline Lamb"
Returned to the boards with the one-woman song-fest, "The Widow Smiles"
Reunited with director Davis for disappointing Agatha Christie adaptation "Ordeal by Innocence", featuring Christopher Plummer
Thrust sexual appetite into British films as Vera in Joseph Losey's "The Servant", scripted by Harold Pinter