Rachel Weisz added to The Railway Man cast

Rachel Weisz has been added to the cast of World War 2 drama The Railway Man alongside Colin Firth.

The Deep Blue Sea actress will be playing Patricia 'Pattie' Wallace, Eric Lomax's second wife.

Colin Firth is already set to play Eric Lomax, a second Lieutenant in the Royal Corp of Signals who was captured in 1942 by the Japanese army in Singapore. War Horse 's Jeremy Irvine plays the younger Lomax.

He was forced to work on the 'death railway' with hundreds of other prisoners of war.

The true story will be based on his life as a POW and his mission to seek revenge years later on those who tortured him.

Burning Man' s Jonathan Teplitzky is directing the movie which will be released sometime next year.