A dream in which you see yourself in a movie could symbolize certain strong desires of yours that you believe cannot be achieved. This is your subconscious mind trying to express its fears, desires, concerns, etc., that cannot be expressed in your waking life.
There are, as you probably know, many different dreams with different details and, therefore, different meanings. Here are some meanings of dreams about being in a movie.
You are experiencing the depths of your desires or fears
If the movie you saw is scary, this could merely be a representation of your fears. There are things that our minds keep, sometimes without our conscious knowledge. These have to be dealt with in some way and dreams happen to be a common avenue alongside hypnotism.
You are not living to your potential
No one really knows just how far they can go, how strong they can be, or how great they really can be. Things can feel off if you are living far below your potential.
Seeing yourself in a movie could be your higher self attempting to show you what is possible. This depends on the details of the dream as has been said, though.
Dream about being an action movie
Seeing yourself in an action movie symbolizes your fear of putting yourself out there, getting what you want, or being who you feel you would like to be. This could be the universe telling you to cast your fear aside and get what you feel is yours in this life.
Being in an action movie in a dream could mean your life feels like you are in a rut, and you deeply want to experience something more exciting.
Dream about acting in a war movie
A dream about featuring in a war film stands for the antagonism between you and the people you could call your enemies. The dream is an expression of the situation with those that would want to stand in your path to your greatness.
This is essentially the universe telling you to stand your ground against all those that would want to deprive you of your Destiny in one way or another.
If you get shot and injured or killed in the dream it means you might be underestimating your enemies in real life. If in the movie within your dream you triumph, it means you have what it takes to rise above all the arrows that your enemies might throw at you.
Dream about being in a romantic comedy
A dream about being in a romantic comedy symbolizes the need to pay attention to small things in your relationship. You could be trying too hard to make things work when all you need to do is take things easy and let go of things you cannot control, focusing more on the lighter, easier, smaller things.
Dream about being a cop in a movie
If you dream about being a cop in a movie, it can be interpreted to symbolize your fear of losing control. You want everything to be in order in your life and this keeps you from achieving your goals. A little chaos and uncertainty are inevitable if you are to achieve anything.
Dream about being in an adventure movie
Seeing yourself in an adventure movie in a dream stands for your sheltered lifestyle. The dream means you might have to go into brand new endeavors, things you have never done before.
This could be your inner self begging to venture out into new territory. It could be about your academics, business, or friendships.
Dream about being with your ex in a movie
A dream in which you see yourself acting with your ex in a movie means there are things you never did that at that time may have felt just impossible to you but that might have saved your relationship.
The dream simply means you should have tried seeing things from a different perspective, a perspective that at the time may have seemed unreal.