I think in Chosen Mishpat Volume 2; 18 and 76 where Rav Moshe tz”l says it is assur to start smoking and get yourself addicted. Smoking is addictive, dangerous and prohibited by many Rabbonim. If one looks online for “RCA Smoking Halacha” he will see a kol koreh there from many prominent Rabbis prohibiting smoking. Rav Elyashiv and other Gedolim prohibited smoking also. Obviously, if one is already addicted he should seek out help and not despair. I am not interested in making this into a smoking thread.
There are a lot of G movies that are mutar.