United 93

It starts as a normal flight to San Francisco...passengers searching for their seats...stewardesses welcoming them...but suddenly they hear about a plane crashing in one of the twin towers in New York...And then another plane...until they know the awful truth...their airplane is being hijacked...this was the trailer I saw yesterday...and I think it is the first film dealing with this sensetive issue after the disaster of 9/11 ...and I wonder if it is really being shown in the American theatres...cause it was like a horror for me...so how is it going to be...for the American audiences...when they see the trailer