AFP - South Korea's film community reacted angrily Monday to a major cinema chain's decision to stop screening a documentary that questions whether North Korea was really behind the 2010 sinking of the warship Cheonan. Megabox withdrew the movie "Project Cheonan" from 27 of its theatres on Saturday, citing customer safety concerns after unidentified conservative activists threatened to stage protest rallies outside the multiplexes. The Megabox move "does serious violence to our cultural vitality which prospers on the basis of diversity and the freedom of expression," the representatives of 11 film industry groups, including directors, producers, critics and others said...