Watch: The Mystery Deepens In New Super Bowl Spot For '10 Cloverfield Lane'

Last month, J.J. Abrams and co. unveiled a little surprise with the first trailer for "10 Cloverfield Lane," a side-quel of sorts to "Cloverfield." And today, they deepen the mystery with a brand new Super Bowl spot for the film.

Starring Mary Elizabeth Winstead, John Goodman, and John Gallagher Jr., the studio is keeping the plot details strictly under wraps, but the majority of the film takes place in an underground cellar, where a woman is being held a doomsday prepper who warns her that going outside is fatal.

"10 Cloverfield Lane" opens on March 11th.