Collette and Grufudd will play a married a couple who are attempting to adopt a child several years after the death of their five-year-old son. The film follows their unexpected encounter with a young boy named Eli.

Collette recently received Emmy and Golden Globe Awards for her work on the Showtime series "The United States of Tara." She received a Tony nomination for her Broadway debut in The Wild Party and an Oscar nomination for "The Sixth Sense." Additional film credits include "Little Miss Sunshine," "Evening," "Velvet Goldmine" and "Muriel's Wedding."

Grufudd has appeared on the London stage in Trouble Sleeping and The Decamaron and on screen in the miniseries "Horatio Hornblower" and "Great Expectations" and the films "W," "Amazing Grace," "Fantastic Four," "King Arthur," "Titanic" and "Wilde."

Grant, whose screen work includes the miniseries "The Scarlet Pimpernel" and the films "Corpse Bride," "Bright Young Things," "Gosford Park," "Twelfth Night" and "Withnail and I," also frequently appears in London theatre.

Mills received a special Oscar for her performance in "Pollyanna." Best known for her work in that film and others for Disney, including "The Parent Trap" and "That Darn Cat," she has performed in New York in Noel Coward's A Suite in 2 Keys and in a U.S. national tour and Australian production of The King and I. Reid, another English stage regular, has appeared in Dimetos, What Now? and Into the Woods. Screen credits include "Savage Grace," "Hot Fuzz" and "The Mother."

The film is a Reliance Big Pictures and Starlight films production. Kintop Pictures, Bent Nail and Serendipity Films will co-produce. Deepak Nayar ("Bend It Like Beckham") will serve as producer, and Alice Dawson and David Mutch will executive-produce the project.