Nag's 'Damarukam' in trouble?

Nagarjuna's socio-fantasy flick, 'Damarukam', completed its shoot long back.
The film which was supposed to release in April this year has ran into trouble, with the release date being pushed to August. According to highly reliable sources, RR Movie Makers, the producers of the film are not satisfied with the product after they watched the rushes.
On the other hand, the differences between Nagarjuna and RR Movies Makers cropped up due to financial issues regarding Nag's earlier film 'Rajanna' and Naga Chaitanya's flick 'Dhada'.Due to the difference, ths producers have ditched Annapurna Studios and moved the post-production work of 'Damarukam' to Rama Naidu Studios.
Insiders confirm that it's the differences between the star and producers that has led to the delay in release of the movie.