Hilary Swank’s costars have her in stitches on the set of her new film. Unfortunately, she’s not making a comedy. The two-time Oscar winner was injured Friday on the set of P.S. I Love You, suffering a gash above her eye and temporarily halting production, E! Online senior editor Marc Malkin reports. The Black Dahlia thesp was sidelined while filming a scene in which her costar, Phantom of the Opera’s Gerard Butler, was performing a striptease. While making his way to a state of undress, he got caught up in a wardrobe malfunction with an errant suspender snapping off and whacking Swank right above the eye. “It was close,” an on-set source told Malkin. “If she was hit just a bit lower, it would have been a major eye injury.” As it is, production on the New York City film set was closed down over the weekend and Swank will likely be out of commission through the end of Monday. [Source]