The film adaptation of 2010 : Odyssey Two was released before 1975 .
The novel was adapted for the screen and released as a film in 1968.Clarke peppered the novel with names of various Soviet dissidents , including physicists Andrei Sakharov and Yuri Orlov , human-rights activists Mykola Rudenko and Anatoly Marchenko , Russian Orthodox activist Gleb Yakunin , among others .
2010-COLON- Odyssey Two