Black Widow to have 'more intimate' relationship with Captain America

Captain America and Black Widow have a more "intimate relationship" in 'Captain America: The Winter Soldier'.

The characters - who first teamed together in 2012's blockbuster movie 'The Avengers' - will unite again to save the world in the second solo adventure starring Chris Evans, and actress Scarlett Johansson, who plays the femme fatale S.H.I.E.L.D. agent, says the pair will realise they have more in common than they think.