Summarize this article:

After you've delivered your request calmly and kindly, your parents might still say, “No, you absolutely cannot see this movie.” Although at times it might not make any sense why they wouldn’t let you see a movie, trying to understand their reasons might give you a new perspective.  Ask them why they don’t want you to see it, and listen to them carefully. Try to really understand what their points and concerns are. You might be surprised to see how some of them might make sense.  Ask them if they would let you see it when you are older, or not at all, and have them explain why or why not. Oftentimes parents are concerned about sex and nudity, profanity, drugs and violence included in the content of the movie. Ask them if they can see it first, and screen it for you, or if there is a family-friendly version they can have you see. One of the reasons why your parents won’t let you see the movie might be that they think you are not mature enough. Acting more responsibly will show them otherwise, and even if they don’t let you see a movie now, they might change their mind later.  Help with household chores such as washing the car or doing laundry, clean your room, and make your bed regularly. Be nice and respectful to your siblings and parents, and don’t start fights. Be understanding and stay calm even if you don't get your way with certain things. This will show that you are mature enough to handle failure or rejection, and that you are determined. Once you’ve intentionally started behaving better and proved to your parents that you are more mature than they might think, try asking them again after a while.  You can also suggest doing something in return, for instance, helping with the dishes daily or vacuuming the living room for a month, if they let you see this movie. No matter what your parents reply with, you should always learn to respect their decision and act your best. If they do not say “Yes” immediately, it’s very important that you stay calm instead of getting angry or throwing a tantrum. Otherwise, you might ruin your chances of a “Yes” forever.

Summary:
Empathize with your parents. Ask them to pre-screen it for you. Start acting more mature. Ask them again later. Stay calm and respect their decision.