 Formal charges against the group were presented on June 4 , the indictment running to 2 @,@ 800 pages . By late June 2012 , disquiet over the trio 's detention without setting a trial date and concern over what was regarded as excessive and arbitrary treatment , led to the writing of an open letter . It was signed by leading opposition figures , as well as by director Fyodor Bondarchuk , a supporter of Putin , and actors Chulpan Khamatova and Yevgeny Mironov , both of whom had appeared in campaign videos supporting Putin 's re @-@ election . Singer Alla Pugachyova appealed on the women 's behalf , stating that they should be ordered to perform community service rather than imprisoned . Meanwhile , Nikita Mikhalkov , head of the Russian Cinematographers ' Union , stated that he would gladly sign an open letter against them . 
