There’s something about the chemistry between Emilia Clarke and Sam Claflin that is just so mesmerizing. On Monday, the two costars showed off their playful sides when they attended the premiere of their film, Me Before You, in NYC. Emilia — who glowed in a lilac ruffle dress — shared a few laughs with Sam as the posed for photographers and met up with the rest of the movie’s cast. In the film adaptation of JoJo Moyes’s bestselling novel, the Game of Thrones actress plays a working-class woman named Louisa Clark opposite Sam, who plays the quadriplegic William Traynor. If you haven’t already read the book, here’s everything you need to know about it before it hits theaters on June 3.