Here is what January Jones had to say about that aspect of the upcoming superhero epic:
When I heard that this installment of 'X-Men' was gonna take place in the '60s I was like, 'Oh my God, you must be kidding me!' But I read the script and familiarized myself with the character of Emma Frost. She's so, so far from Betty and from 'Mad Men,' and it takes place in that time but it doesn't feel like a period movie."
About the tight, white leather costumes that Jones is required to wear as part of Emma Frost's iconic look, the actress stated:
The costumes are insane. It's a lot of very body-conscious stuff. If you look at the comic book, she's barely dressed. She's got quite the bod, which is very intimidating. I'm thinking, 'I'm supposed to be doing crunches on the plane. How am I gonna get buff in one day?' I'm a petite person, so I didn't want to go into a strict workout and eating regime. I would have disappeared entirely, and she's very busty, very voluptuous, so I didn't want to get rid of any of my curves."
About her character's mutant powers, January revealed:
I don't have to do all the crazy prosthetics. When I morph into my diamond form, it's all done on computer. Emma was a bespectacled, mousy child who had this power when she was young that she couldn't quite harness, the telepathy, the mind-twisting stuff. She had a falling out with her father and went her own direction. Fans of the X-Men comics have a very set idea of these characters in their heads. I wanted to know as much as I could about her so I wasn't disappointing anyone. I'm sure I will still disappoint someone. I'm riding around in helicopters, I'm in a boat one day, I'm in all these fight sequences, we're all over the English countryside. I feel like I'm a kid playing mutant."
Members of the movie's creative team have compared the story arc of X-Men: First Class, which focuses on the intense relationship between Charles Xavier (James McAvoy) and Magneto (Michael Fassbender), to the public-life trajectories of Rev. Martin Luther King Jr. and Malcolm X. That will definitely play into the 60s-era aspect of the plot.
To read more about X-Men: First Class and January Jones' involvement in the production,
X-Men: First Class was released June 3rd, 2011 and stars James McAvoy, Laurence Belcher, Michael Fassbender, Bill Milner, Kevin Bacon, Rose Byrne, Jennifer Lawrence, Beth Goddard. The film is directed by Matthew Vaughn.