“Game of Thrones” star Kit Harington is in negotiations to star in Paul W.S. Anderson’s “Pompeii,” a period disaster movie chronicling the 79 A.D. eruption of Mount Vesuvius that is being financed and produced by Constantin Film.Lionsgate/Summit is handling U.S. distribution for the pic, which follows Milo (Harrington), the slave of a shipping tycoon who dreams of the day he can buy his freedom and marry his master’s daughter. What Milo doesn’t know is that she’s already been promised to a corrupt Roman senator, while he’s been sold to another owner in Naples. Just when things can’t get any worse, Mt. Vesuvius erupts, prompting Milo to head back to Pompeii to rescue his love and his best friend, a gladiator who’s trapped in the city’s coliseum. Anderson and Jeremy Bolt are producing “Pompeii” through their Impact Pictures banner along with Robert Kulzer and Martin Moszkowicz of Constantin Film. Lee Batchler and Janet Scott Batchler wrote the script, which was revised by Julian Fellowes. Harington, who plays Jon Snow on HBO’s “Game of Thrones,” recently starred in “Silent Hill: Revelation” and will soon be seen alongside Jeff Bridges and Julianne Moore in WB/Legendary’s “The Seventh Son.” He also voices one of the lead roles in DreamWorks Animation’s “How to Train Your Dragon 2,” which Twentieth Century Fox will release on June 20, 2014. He’s repped by CAA, Parseghian/Planco and Jackoway Tyerman.