I would think the Star Wars Trilogy in 2004 sold many many copies and would be up there with the all time best sellers but even then according to a BBC article I was reading on this subject just a few days ago, it still wasnt the top selling live action DVD of all time which it said was the original Pirates of the Caribbean, but the biggest selling DVD of all time it said was Finding Nemo which sold 27 million copies, I think you are getting your information of play.com where the Star Wars Trilogy was their best seller but has now been replaced with Dead Mans Chest as their best selling DVD of all time, the 5 million copies of Dead Mans Chest you are talking about is the estimated first day US sales......