I read that it had been confirmed the Wii U will not play Blu-Ray or DVD movies.
Source: http://www.nintendo.co.jp/ir/en/library/events/110608qa/index.html
Q: Are you planning on making the Wii U more of a home entertainment console by including Blu-ray or DVD drives, or is it going to be more like the Wii, and just be more of a pure gaming console?
A: Wii U does not have DVD or Blu-ray playback capabilities.
The reason for that is that we feel that enough people already have devices that are capable of playing DVDs and Blu-ray, such that it didn't warrant the cost involved to build that functionality into the Wii U console because of the patents related to those technologies.
May the NFOrce be with you always.