Always (1989) .... Hap

Love Among Thieves (1987) (TV) .... Baroness Caroline DuLac

American Film Institute Salute to Billy Wilder, The (1986) (TV) .... Herself

Directed by William Wyler (1986) .... Herself

Kennedy Center Honors, The (1981) (TV) .... Herself

They All Laughed (1981) .... Angela Niotes

Bloodline (1979) .... Elizabeth Roffe
1979) 
 

Robin and Marian (1976) .... Lady Marian

American Film Institute Presents a Salute to William Wyler, The (1976) (TV) .... Herself     (1976) (tv)

 World of Love, A (1971) (TV) .... Host

22nd Annual Tony Awards, The (1968) (TV) .... Presenter

Wait Until Dark (1967) .... Susy Hendrix

Two for the Road (1967) .... Joanna Wallace

How to Steal a Million (1966) or How to Steal a Million Dollars and Live Happily Ever After... Nicole Bonnet  (1966)

Love Goddesses, The (1965) or The Love Goddesses: A History of Sex in the Cinema, The .... Herself 
(1965)

My Fair Lady (1964) .... Eliza Doolittle

Paris - When It Sizzles (1964) .... Gabrielle Simpson

Charade (1963) .... Regina 'Reggie' Lampert

New Kind of Love, A (1963) (uncredited) .... Runway Model

33rd Annual Academy Awards, The (1961) (TV) .... Presenter

Children's Hour, The (1961) or Loudest Whisper, The.... Karen Wright 
(1961)

Breakfast at Tiffany's (1961) .... Holly Golightly (Lulamae Barnes)

Unforgiven, The (1960) .... Rachel Zachary

Green Mansions (1959) .... Rima

Nun's Story, The (1959) .... Sister Luke (Gabrielle van der Mal)

Love in the Afternoon (1957) .... Ariane Chavasse

Funny Face (1957) .... Jo Stockton

War and Peace (1956) .... Natasha Rostov 
(1956)

Sabrina (1954) .... Sabrina Fairchild  (1954)

Roman Holiday (1953) .... Princess Ann aka Anya 'Smitty' Smith

Nous irons à Monte Carlo (1952)or We Will All Go to Monte Carlo .... Melissa Walter 
(1952)

Secret People, The (1952) .... Nora
(1952)

Lavender Hill Mob, The (1951) .... Chiquita

Monte Carlo Baby (1951)or We Go to Monte Carlo .... Linda Farrel 
or We Go to Monte Carlo (1951) (USA)

One Wild Oat (1951) .... Hotel Receptionist

Young Wives' Tale (1951) .... Eve Lester

Laughter in Paradise (1951) .... Cigarette girl

Nederlands in 7 lessen (1948)(or dutch in 7 lessons) (uncredited) .... KLM stewardess