Melvyn Bragg meets Daniel Radcliffe in New York, where the Harry Potter star is performing in The Cripple of Inishmaan following its successful run in London's West End. He talks about the challenges associated with growing up on set and in the limelight and reveals what motivates him to continually test himself with the varied roles he chooses.

Here he talks about how his cut his acting teeth in Harry Potter and how he learnt so much through the influence of Gary Oldman.

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