Avatar became the highest grossing film ever when it hit theaters last year. The film drew huge crowds and while it lined the coffers of 20th Century Fox and the wallet of James Cameron, the movie drew lots of interest to 3D in theaters and homes. Even though the film garnered lots of fans, it also had a few critics including the U.S. Marine Corps.

20th Century Fox has announced that Avatar is the best selling movie in America on both Blu-ray and DVD. The film is also the best selling Blu-ray movie of all time with 2.7 million copies sold in only four days on store shelves in North America alone. The previous record was 2.5 million units. 

In all, Avatar has sold 6.5 million copies (DVD + Blu-ray) since it launched on Thursday of last week. The downside to the popularity of Avatar on Blu-ray is that some buyers of the movie are finding that the Blu-ray disc won’t play on some players on the market.

The specific player cited in reports is the Samsung BD-UP5000. The reason the player reportedly can’t play Avatar is because of a firmware update that is missing and needed by the device. Other Samsung Blu-ray players are also facing the same issue. Presumably, Samsung will be rushing the update out for the players since the Avatar is so popular.

Some users are claiming that it's not a firmware issue, but some sort of DRM issue with the movie itself pointing the finger at 20th Century Fox rather than Samsung.