India, Feb. 20 -- Actors Kit Harington and Sophie Turner, who famously played siblings on Game of Thrones, are now cast as lovers in an upcoming film, The Dreadful, and they're not letting anyone forget how awkward that was. In a behind-the-scenes video shared by Entertainment Tonight, the two are seen kissing in character before playfully retching once the director calls "cut!". The crew can then be heard laughing as the two actors pretend to be sick and gag. Sophie had earlier admitted, "It's really weird for us" to play lovers, joking that she and Kit were "both retching" during intimate scenes. Recalling her first reaction to the script, she said, "I'm like, 'Oh, shoot . that's my brother.'" Kit echoed the humour, telling E! News, "It was slightly embarrassing, having to get on an apple box to kiss her because she's about a foot taller than me," adding, "But other than that, my dignity was pretty intact."HTC...