One advantages of having more than one political party is you have different perspectives and ideas on how to solve problems. One disadvantage is the different parties will have a hard time agreeing and solving problems because they will both think their right.
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.
Increasing criminal punishment
Accounting regulation
New protections
The Aryan Empire lasted 100 years and the Mauryan Empire lasted 300