Daniel Radcliffe smiled and gave the thumbs up as he arrived at Al Hirschfeld Theatre in NYC yesterday. The actor is rehearsing for his role in musical How To Succeed in Business Without Really Trying. He's been perfecting his dance moves ahead of the previews, which start tomorrow before the official opening night on March 27. Dan signed on to the revival back in October 2009, and has chatted about the show. It marks a return to Broadway for Dan following his stint in Equus back in Autumn 2008. Dan had a headline hitting 2010 thanks to Harry Potter mania and his relationship status, and we quizzed you on how well you know famous Daniels. The actor also has new films coming up, as he will reportedly star in The Amateur Photographer. This week has also seen our first look at Dan in Woman in Black.