Director Robert Zemeckis, whose The Polar Express and Monster House were released in the 3-D IMAX format, is teaming up with the Walt Disney Co. to create a new company that will produce additional 3-D features, Disney announced Monday. "The creation of this new company is yet another step in our leadership role in cutting edge technology as it relates to the movie industry." Disney Studios chairman Dick Cook said in a statement. Zemeckis is currently working on a 3-D version of the classic Beowulf. On Monday, Daily Variety reported that the number of screens equipped to show 3-D films is expected to double from about 250 to 500 worldwide in the next two months and rise to 1,000 by the end of the year.