Sienna Miller's caught in a love triangle as she stages her West End return

Sienna Miller is returning to the West End for the first time in six years after being persuaded by director Trevor Nunn.

The actress - whose career has often been overshadowed by her relationship with Hollywood star Jude Law - will be caught up in a love triangle in Terence Rattigan's Flare Path.

Miller last appeared in the West End in 2005 as Celia in As You Like It, but she said: "I don't feel I've been away. It has definitely been my choice that I haven't been working a lot recently."

Flare Path will be Nunn's opening production in a season of plays as artistic director at the Theatre Royal.

It is about RAF men during the Second World War - and the women who wait for them.

The production comes as part of the celebrations of the playwright's centenary year.

Nunn has been an admirer of Miller, 29, for several years and wrote to her asking if they could find a project on which to collaborate.

Last year he wanted to work with her on the stage version of Birdsong but she was committed to other projects.

First staged in 1942 and starring Alec Guinness, Flare Path was written while Rattigan served as an air gunner for RAF Coastal Command.

In Nunn's version Miller will play Patricia Graham, a former actress caught up in a love triangle.

She is married to a pilot, Teddy, but also has feelings for an old flame.

Miller said the dialogue was typical of the period: "Stiff upper lip - and that stiff upper lip hides their true feelings.

"Once we're in the rehearsal room there's no one like Trevor to tell a story like this, and to uncover the subtext."

Rehearsals begin at the end of this month. The first preview is on March 4, with an official opening night on March 10.

Other productions during Nunn's run at the Theatre Royal will include one of Shakespeare's late plays, an early Stoppard piece and Stephen Sondheim's Follies.