The director Bryan Singer clearly enjoys playing with these oversize, puppetlike meanies and finds queasy comedy in their threat, especially when Jack, Isabelle and some others, including a knight, Elmont (Ewan McGregor channeling Errol Flynn), nearly become finger food.
Source: "This Jack stays near the stalk", THE GLOBAL EDITION OF THE NEW YORK TIMES, THURSDAY, MARCH 7, 2013
What does it mean "to channel" somebody? Does it mean to imitate?