tropical thunder film with Blackface

i saw Jack Black, Robert Downey Jr and Ben stiller on 106 and park yesterday and of course the ads for Tropical thunder came out and Robert Downey is rocking BlackFace which offends me and other African-americans. hollywood lives for this kind of thing and always has. from the days of DW Griffth's "Birth of a Nation" back in 1916 to this latest film. i mean Hollywood has always been funny time toward Black People in film,etc.... this type of thing merits a Boycott but who is gonna boycott this? I mean this kind of thing is green lighted in Hollywood where no Black Person to this day can green light a film. I don't find anything funny about a white actor wearing Black face. it feels more like 1908 than 2008. we do have a Black Man running for president by the way and how does this look? what is more insulting is that nobody from BET's 106 and Park called Ben Stiller out the film-director of the movie out or Robert Downey who had the Black Face on. i avoid these films and i cringe at the writing and then hearing the laughter that doesn't even question the imagery on screen.