Given how passionate fans of the TV drama 'Mad Men' are, it's easy to forget that the cable show's audience is so limited that its stars aren't, like, stars.

Sure, Jon Hamm appeared in a moderately successful movie last year ('The Town') and has hosted 'Saturday Night Live' multiple times. But as of yet, no box-office heroes have emerged from 'Mad Men.'

Which leads us to ask: Will January Jones (aka Betty Draper) be the first to break out? With big roles in a trio of promising films due out this year -- the Liam Neeson thriller 'Unknown' (Feb. 18), the potential blockbuster 'X-Men: First Class' (June 3) and the Nicolas Cage drama 'The Hungry Rabbit Jumps' (release date TBD) -- Jones has a real shot at transitioning from small-screen favorite to bona-fide star.

In honor of her 33rd birthday -- she isn't named December Jones for a reason -- let's take another look at Miss January (enjoy the photos!) and debate a burning question: Will the 'Mad Men' actress's upcoming films push her over the movie-star hump?