After doing a little exploring in her NYC neighborhood, Katie Holmes kept on her comfy jeans for acting class yesterday afternoon. This morning in stripes, she stopped by for rehearsal at the theater to gear up for her September Broadway debut. While all eyes are on Katie and her next few projects, the future of Tom's big movie Valkyrie still seems up in the air. At least one of the movie's costars came forward to deny the claims that the film's multiple delays are a terrible sign. We'll have to wait and see on that, but until then we've got Mrs. Cruise to take the stage and small screen (and hopefully some Suri in the big city) to keep us entertained.