Just finished watching X-Men: First Class (blu-ray) and had a blast. Seeing all these characters from the books woven into the new tale along with events from world history. Going back into the back story of our main protagonists (ProfX and Magneto) holds everything together - action and the human stories alike.
The sound and music was super, bringing all the mutants powers together and continuing the work from the previous films. I liked all the casting, with each bringing something more to the characters (gotta love Kevin Bacon as well). The CG effects are gorgeous and flawlessly integrated while keeping a nice old-school 60s feel to the whole film.There is a little more info on Luma Pictures work on the film in CGSociety's Feature.
First some imagery from the film itself (it looks so good in HD) showing off some character designs and CG overlays thanks to DuBlu's review:
[Shots from X-Men: First Class via DuBlu - shrunk, see site for fulls]
Then here is some concept art from the film.
First some Jamie Rama environment concept art pieces:
[Jamie Rama X-Men: First Class concept art via his blog]
Lastly some character concepts by Howard Swindell:
[Howard Swindell X-Men: First Class concept art via his blog]