"Everyone was really devastated. It was really, really sad," Radcliffe said Sunday. "Were crying quite a lot."
He talked about Potter as he arrived at Radio City Music Hall for the 64th Annual Tony Awards, where he and Katie Holmes presented the best featured actress in a play award to Scarlett Johansson.
"Harry Potter and the Deathly Hallows" will be released in two parts with the first installment coming out later this year, and the finale next summer.
When asked how it felt to end his role as the boy wizard, Radcliffe said, "It's a weird, weird feeling."
Radcliffe, who starred in a revival of "Equus" in 2008, returns to Broadway next spring in a revival of "How to Succeed in Business Without Really Trying."
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