A trailer for Man of Steel, which presumably will show more than the teasers shown with The Dark Knight Rises (see "'Man of Steel' Trailers"), will play in front of The Hobbit: An Unexpected Journey, which opens December 14th. Both films are distributed by Warner Bros.  The trailer will be shown with both 2D and 3D versions. 
It’s going to be along run-up to the movie in some theaters, which will also be showing a nine minute Star Trek Into Darkness preview (see "'Star Trek' Sequel IMAX 3D Preview").

Man of Steel opens June 14, 2013.