Factual error: The movie is set in the late 1950s, yet Ed's car has yellow-on-black California license plates that weren't issued until 1963. The plates on Ed's car should be black-on-yellow 1956 issue plates.
Factual error: When Ed is trying to sell himself to George Weiss as the director of Glen or Glenda, George says, "I make movies like Chained Girls!" Glen or Glenda was made in 1953, and Chained Girls wouldn't be made until 1965.
Factual error: Ed Wood films Lugosi exiting his house, and grabbing a flower near the entrance, a scene to be shown in "Plan 9". However, in fact, the real scene of "Plan 9" shows Lugosi exiting his house, walking across a garage door (that doesn't exist in "Ed Wood") and grabbing a flower around there.
Chosen answer: Because the Special Edition is about to be released. See http://www.dvdauthority.com/reviews.asp?reviewID=3687.
J I Cohen