The face was the same one we saw in 1993, when the world first noticed him. Two great roles came in tandem: as a tortured stepson in Michael Caton-Jones’s This Boy’s Life and as a teenager with learning difficulties in Lasse Hallström’s What’s Eating Gilbert Grape. By then, DiCaprio was 19, and had passed through the usual child-performer proving grounds of television comedies and toy adverts, plus a couple of potboiler features, one of which went straight to video. But this was a double chance to be noticed alongside serious established talent: De Niro in the former, who had chosen him for the role from among 400 auditionees, and Johnny Depp in the latter, who plays his older brother.