Agutter moved to Hollywood at 21 and appeared in a number of films over the next decade, including The Eagle Has Landed (1976), Logan's Run (1976), Equus (1977), Sweet William (1980), and An American Werewolf in London (1981). Since 1990, Agutter has deliberately focused on the upbringing of her son and much of her work focused away from film and television work and rather involved audio recordings and supporting various charities, notably the Cystic Fibrosis Trust, of which she is a patron (she is also a carrier of the disease). Nonetheless, she had a guest role in Series 6 of Red Dwarf, and appeared in the TV series TECX, The All New Alexei Sayle Show, and And The Beat Goes On. In 2000, she made her third appearance in a production of The Railway Children, produced by Carlton TV and this time playing the role of the mother. In 2002, Agutter featured in the BBC television series Spooks and in 2007, she starred in the first episode of the new series of David Jason's ITV television series Diamond Geezer. In 2007, she also guest-starred in the Doctor Who audio drama The Bride of Peladon.
Agutter also attained a reputation for scenes containing nudity in her films during the 1970s. Her first nude scenes - filmed when she was just 16 - came in Walkabout (1971). They included a five minute skinny-dipping scene inter-cut with shots of the aboriginal guide hunting for food which was cut from the original US release, and also some more nude bathing during a flashback sequence at the end of the film. Both of these scenes heavily feature both rear and full-frontal nudity, but a number of the swimming sequences were at a distance, or blurred by the water. The uncut version was originally rated AA (14) in the UK, though has since been rated 12. Walkabout was made before The Railway Children but released after it, and Agutter's nude scene shocked some audiences that associated Agutter with the prim and reserved character she played in that film. It was seen by some as an attempt to break away from the child roles with which she had become associated.
It was five years before Agutter did any more nudity and it came in the form of the PG rated Logan's Run (1976). She has a brief full-frontal nude scene at distance, and it is one of the rare instances of a PG film featuring nudity.
Her most explicit nude scenes came in Equus (1977), in which Agutter attempts to seduce stable boy Peter Firth. There is full frontal and rear nudity from both actors. She followed up Equus with Monte Hellman's China 9, Liberty 37 (1978) which also included a couple of full frontal nude scenes.
Towards the end of the 1970s she also appeared in nude scenes in Sweet William (1980) and An American Werewolf in London (1980) which featured just topless nudity. In the drama series Spooks (2002) she appeared in a sex scene that did not feature any nudity.
| Filmography | ||||
|---|---|---|---|---|
| Year | Title | Format | Role | Other notes |
| 1964 | ''East of Sudan | Film | Debut aged 11 | |
| 1966 | A Man Could Get Killed | Film | Linda Frazier | |
| 1968 | Gates to Paradise | Film | Maud | |
| Star! | Film | Pamela Roper | ||
| 1970 | The Railway Children | Film | Bobbie Waterbury | |
| 1970 | The Great Inimitable Mr. Dickens | TV Film | ||
| 1971 | Walkabout | Film | Girl | |
| 1972 | Shelley | Television | Mary Shelley | BBC series |
| 1976 | Logan's Run | Film | Jessica 6 | |
| The Eagle Has Landed | Film | Molly Prior | ||
| 1977 | Equus | Film | Jill Mason | |
| 1978 | China 9, Liberty 37 | Film | Catherine Sebanek | |
| The Riddle of the Sands | Film | Clara | ||
| 1980 | Sweet William | Film | Ann Walton | |
| 1981 | Othello | Film | Desdemona | |
| An American Werewolf in London | Film | Nurse Alex Price | ||
| 1984 | Secret Places | Film | Miss Lowrie | |
| 1985 | Love's Labour's Lost | Television | Rosaline | |
| 1990 | Child's Play 2 | Film | Joanne Simpson | |
| Darkman | Film | Burn Doctor | uncredited cameo | |
| 1993 | Red Dwarf | Television | Prof. Mamet | |
| 2000 | The Railway Children | Television | Mother | ITV |
| 2001 | The Parole Officer | Film | Victor's Wife | |
| 2002 | At Dawning | Escaping woman | ||
| Spooks | Television | Tessa Phillips | ||
| 2004 | Number One Longing, Number Two Regret | Kenosha | ||
| The Alan Clark Diaries | Television | Jane Clark | BBC TV series | |
| 2005 | New Tricks, Season 2, Episode 1 | Television | Yvonne Barrie | BBC TV Series |
| 2007 | Diamond Geezer | Television | Vanessa | ITV series |
| Irina Palm | Television | |||
| 2008 | The Invisibles | Television | Barbara Riley | BBC TV series |