21 is so astonishingly detailed on Blu-ray, you can literally see the ink texture on the cards. This is a phenomenal live action presentation, loaded with depth and brilliant, natural colors. Black levels remain deep throughout, and the overhead shots of Vegas at night are amongst some of the most beautiful shots the format offers. If you’re nitpicky enough, the whites can occasionally run a little hot, but this is a minor flaw in a nearly perfect Blu-ray transfer. 
While the movie itself may be lacking opportunities to show off heavy bass (the musical backdrop inside a club is about it) this is an otherwise atmospheric and lively TrueHD mix. The casino comes alive, with light chatter and various other casino sounds enveloping the viewer in the experience. Character dialogue nicely fits in without being overwhelmed. 
Director Robert Luketic sits down with his co-producers for a commentary which not only discusses the shoot, but the actual events that inspired it. Three featurettes run about 37 minutes, including one that tries to further explain how counting cards works. A Blu-ray exclusive blackjack game is included, and it’s surprisingly well rounded, both visually and how it plays. 
MIT wouldn’t allow the film crew to film on their campus. Instead, the production ended up at Boston University, and many of the extras seen in the film are from around the campus.
Article comments
1 - Derek Fleek
Nope, didn't like this one.