Natalie Portman has signed on to star alongside Tobey Maguire and Jake Gyllenhaal in Jim Sheridan's love-triangle drama "
Brothers" for Relativity Media.
Based on Susanne Bier's 2004 Danish-language film, story centers on a man (Maguire) who is sent to fight in Afghanistan while his black-sheep brother (Gyllenhaal) cares for his wife (Portman) and child.