Jennifer Lawrence is looking blue on the set of X-Men: Days of Future Past – but don’t take that to me she’s glum to be there. Director Bryan Singer tweeted a photo of the actress as the blue shape-shifting mutant Mystique, The Hollywood Reporter said.

In 2011’s X-Men: First Class, Lawrence was transformed into Raven via body paint, but she gas indicated a costume would be used to create the effect this time around.

Singer has been tweeting up a storm about Fox’s Days of Future Past – first by announcing cast members via twitter and more recently sharing set photos of Hugh Jackman, James MCAvoy and Halle Berry.