He came to greater attention in 2006, when he played as Dwayne, a voluntarily mute teenager as part of an ensemble in the comedic drama Little Miss Sunshine, which received critical acclaim and collective awards for its cast. Dano's work with Daniel Day-Lewis led to a dual role opposite him in his next film, Paul Thomas Anderson's There Will Be Blood, playing identical twin brothers Eli and Paul Sunday. This earned him a BAFTA nomination for Best Supporting Actor, and brought him positive reviews, with Texas Monthly saying that his performance was "so electric that the movie sags whenever he's not around." and Peter Travers remarking "All praise to the baby-faced Dano...for bringing sly cunning and unexpected ferocity to Plainview's most formidable opponent." Rolling Stone magazine included Dano in its Hot List for 2007, calling his performance style "Daniel Day-Lewis + Billy Crudup × Johnny Depp."