Ten years ago, Katie Couric sat down with Daniel Radcliffe for an exclusive behind the scenes look as the actor took on playing the titular character in the first “Harry Potter” motion picture. Now, the 21-year old Radcliffe is interviewed again by Couric, having wrapped filming on the final installment of the Harry Potter films, and starring as corporate ladder-climber J. Pierrepont Finch in the 50th anniversary revival of “How to Succeed in Business Without Really Trying,” which opens on Broadway March 27. Photo: CBS ©2011 CBS Broadcasting Inc. All Rights Reserved