Documentaries are great for visualizing history, but are there films or series that are considered more credible?
The World At War, although made some time ago now is an excellent series.
Most war films vary from inaccuracies to complete fantasy. You may be interested in the responses to this similar question: http://www.reddit.com/r/AskHistorians/comments/2ejnd4/what_is_the_most_indepth_comprehensive_and/