Use Windows Movie Maker Live... (free). Microsoft is using Live now for movie editing. Then click on edit, the in the drop down box for duration choose a time.
I uploaded a picture to show you the setting.
Maybe see is Powerpoint coudl export into a clip of some kind you could import into movie maker. Hence put your photo in a PPS and export it to a video of somekind.
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.