The Persepolis film; literally about afterwards of Persepolis, an ancient city of Persia

As I was watching the movie Persepolis, I felt like the movie Persepolis was mainly about Iran, named after the fall of Persepolis. It did not cover many of the most interesting personal events that were told by Marjane through the book. Watching the movie made me feel like I was skimming her graphic novel. Along with the indications of the dates and place, the movie was mainly focusing on what Iran was going through in the late 1900s instead of what characters in that time period went through.
The movie starts with Marjane in the airport smoking in color(cigarette symbolizes Marjane most of the time in the book) with frowning face full of worries. she puts on the veil in the bathroom after the word Tehran comes up on the board. Here, I was feeling a little suffocated by the mood because it was so depressing. Then the film brings viewers to her childhood memoir in black and white after the scene of her smoking. I actually liked the mobile little Marjane in the movie because her behaviors were visualized very well when she runs funny and looks happy with her family. The film was trying to visualize a lot on the war scenes with bombs and fires. The overall conversations that characters had were in monotone and was somewhat boring and failed to grab attention.
Towards the end of the movie, the colored Marjane appears again in the taxi and the taxidriver asks her where she is from and she answers Iran in monotone again. I felt like the colored Marjane was chasing after the freedom but as long as she is Iranian and her family is there, it seems like she is tied to the country and it is very difficult to obain completely freedom because of fundamentalism. The movie seemed like its purpose was to depict how gloomy the country is due to the government by the overall mood. However, exclusive colored Marjane part was there to show how she kind of gained freedom after leaving the country in the present; Another reason was to distinguish between past and present. I was feeling regrets on the movie because the movie itself, just like the country, was also restrained by the time limit and wasn't able to stress on insteresting episodes and had to condense everything of the book into a film. I would definitely recommend the book to the viewers of the film to fully understand internal feelings that Marjane and other characters felt.