Demonstrators in the US are protesting against the alleged lampooning of people with mental disabilities in Ben Stiller’s new film, ‘Tropic Thunder’.  The film satirises the excesses of Hollywood, but groups representing special people claim it is demeaning to people with intellectual disabilities. Critics have panned the film so it’s likely not enough people will see it to be offended.  Variety described the film as ‘thin, redundant and one-note’.