You'll have to go to Internet archives and look up 'moving images'. You may or may not find MGM footage with the introduction you are looking for. I snagged a Columbia pictures or Paramount (can't remember which) intro and had to redo the music because it was crappy.
I found the intro music by doing a search with limewire. Here's the link to the archive. http://www.archive.org/index.php There are plenty of other good clips on this server which, with a bit of creativity, you can incorporate into you're project.
I managed to find some good black and white explosions from their films on engineering. I also got some good ones of racing firetrucks from a nursing training video. The files are big so you'll hopefully have high speed.
Try to snag the biggest file as they are the best quality for projection, either onto a television or through a video projector onto a screen. Make sure you have the proper codecs. Some of the clips ... more.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.