In our society there are extensive practices and traditions which derive from ignorance and which have withheld the progress in our society. Rigidity of caste system, untouchability, dowry system and purdah system have done enormous injury to our society. Cinema films can do a lot to eliminate these evils. They could be used for promoting national integration, Prohibition, intercaste marriages, family planning, eradication of illiteracy, etc. Such themes can help the..