Wa `alaykum As-Salamu wa Rahmatullahi wa Barakatuh

 

In the Name of Allah, the All-Merciful, the Mercy-Giving

 

 All praise is due to Allah. Peace and blessings be upon His Messenger Muhammad.

 

If you can get this film cancelled or stop them from publishing your name, you ought to do so. If, however, you cannot do so, then you need to seek repentance and resolve firmly in your mind not to repeat the same. As for the method of repentance, you may refer to the answer linked below:

The Door of Repentance Is Wide Open

 

Almighty Allah knows best.