Hugely controversial upon its release because of its depiction of the assassination of Kennedy, the film was unceremoniously yanked from many theaters in its first and second weeks of showing because of the bad press. Many television stations also refused to run trailers for the film.
One of several films to offer up a different (and, some would say, fictional) viewpoint of the Kennedy assassination. Others that have taken this route include William Tannen's Flashpoint (1984) and, most visibly, Oliver Stone's JFK (1991).
Although Donald Sutherland is credited with having the initial idea for the film, and was indeed attached to star, he withdrew from it as it neared production in order to go off and concentrate on other projects. Sutherland would of course go on to have a pivotal role in Oliver Stone's take on the same subject - JFK (1991).