I've not found a "Hollywood" movie to ever be entirely truthful or particularly factual, even so called documentaries. I think such a movie would be an impossibility given the number of people involved in making a movie with all of the different perspectives and goals. Writers and screenwriters have biases, directors have a certain vision, actors and actresses interpret, investors have expectations to be met and, above all, the audience must be entertained. The entertainment aspect is the driver, boring facts and incidents are omitted, time is compressed (imagine the Alamo, in real time, with all of the tedious waiting). There is a reason a story board is called a story board. They tell stories, some based on factual events or real people but, in the end, they are flights of fancy, products of perceptions and visions all designed to amuse or divert.