Controversies are normal for political and social movies. Shekar Kammula's leader is nothing different. The censor board has objected the trailer as the background voices were used from the actual assembly conversation that took place at some time (like "Veelu Jagir Rasukunnaru Rastranni" etc). Obviously the leaders will not like this and if they are still in power the movie will get into more trouble. 

D Ramanaidu's grandson RaNa is making his debut with Leader. Leader will hit screens on december 24th as planned if it does not get into further trouble.

If you missed the trailer Take a look here