Daniel RadcliffeDaniel Radcliffe has overextended himself, and it's costing Warner Bros. a pretty penny -- $500,000 to be precise.

The 'Harry Potter' actor is signed on to appear in this year's Broadway revival of 'How to Succeed in Business Without Really Trying.' At the same time, the second installment of 'Harry Potter and the Deathly Hallows' is due to open in July, in London. This means that the English actor might not be available to fulfill promo obligations for the final film in the 'Harry Potter' saga.

Warner's execs have made a deal to rent out the Hirschfield Theater where Radcliffe's play is being staged for five nights to keep his schedule free and clear. It's costing them a cool half-million dollars, and according to the New York Post, studio bosses are not pleased.