Rachel McAdams gets sister for "The Vow"

LOS ANGELES (Hollywood Reporter) - Australian actress Jessica McNamee will play Rachel McAdams' estranged younger sister in "The Vow," a romantic drama that starts shooting in Toronto next month.

The Spyglass/Screen Gems project tells the real-life story of a newlywed New Mexico couple (McAdams, Channing Tatum) who end up in a car crash. The wife is put in a coma, and when she comes to -- without any memory of her husband or their marriage -- the husband attempts to wins her heart again. Michael Sucsy will direct.

McNamee starred on the hit Australian TV series "Packed to the Rafter" and in the horror movie "The Loved Ones," which screened last year at the Toronto Film Festival.