James McAvoy says he once turned down 'a ton of money' to potentially play Tom Riddle in 'Harry Potter'

Jun Sato/WireImage/Getty Images, Warner Bros.

• James McAvoy said he turned down the opportunity to potentially play a key role in "Harry Potter."
• The actor said he was asked to be put on a retainer for the role of Tom Riddle.
• "For me, at that time, it was a ton of money, it was like £40,000 or something like that," he said.

Scottish actor James McAvoy has said he once turned down...