Warner Bros.' boss doubles down on the Harry Potter series, promising that it will run for a decade on the channel.

The actors playing Harry Potter and Hagrid in HBO’s new series were spotted filming for the first time in London on Monday. Dominic McLaughlin, 11, got into costume as the beloved titular wizard with a collared sweater, a coat, jeans and a backpack. Of course, the actor also sported Harry’s signature round glasses.