The stars of the eagerly anticipated movie “The Hunger Games” said scenes of violence were justified, after British censors agreed to give the film a “12A” rating only after some footage was cut. Based on the first of three novels by Suzanne Collins, the film is a post-apocalyptic story in which US actress Jennifer Lawrence plays heroine Katniss Everdeen who volunteers to take her sister's place in a televised fight-to-the-death battle. The hype surrounding its March 23 launch has been compared to the hugely successful “Twilight” vampire movie franchise, and industry experts predict an opening weekend box office tally of up to $100 million in North America alone.