"Daniel Radcliffe, Rupert Grint and Emma Watson to Reprise Roles in the Final Two Instalments of Warner Bros. Pictures' Harry Potter Film Franchise" (Press release).
2008년 1월 12일에 확인함.  “Daniel Radcliffe, Rupert Grint and Emma Watson to Reprise Roles in the Final Two Instalments of Warner Bros. Pictures' Harry Potter Film Franchise” (보도 자료).