After the conclusion of America's Civil War, President Abraham Lincoln pitched the ... These issues became more difficult to solve after President Lincoln was murdered.
A federal prosecutor/attorney
Death penalty or death penalty schemes
If the movie is perhaps a documentary, then it is telling you factual information of actual events (includes pictures or pictures of actual documents or events); this makes it a primary source.
If the movie is based off of real events, has factual information, but also has added information to create a well-rounded plot, this makes it a secondary source.
