Dr. Seuss' The Grinch Musical' premiered Wednesday night on NBC to mixed reviews. ET's mini correspondents spoke with Cumberbatch ahead of his upcoming movie, 'The Grinch,' in theaters Nov. 9.

For their eighth fully animated feature, Illumination and Universal Pictures present The Grinch, based on Dr. Seuss' beloved holiday classic. The Grinch tells the story of a cynical grump who goes ...