Russian Animation Copyrights

Who owns copyrights in approximately 1500 animated films created by a state-owned Soviet film studio between 1946 and 1991 and who can enter into a valid exclusive licensing agreement to distribute those films outside the Former Soviet Union?
Films by Jove v. Berov, 98-CV-7674 (EDNY, Nov. 5, 2004) looks again at this case, ruling on a Rule 60(b) motion to review the decision taking into account a Russian Federation Directive enacted after the earlier rulings in the EDNY, Films by Jove v. Berov, 154 F. Supp. 2d 432 (E.D.N.Y. 2001) (“Films by Jove I”) and Films by Jove v. Berov, 250 F. Supp. 2d 156 (E.D.N.Y. 2003) (“Films by Jove II”).
AWN: New York Court Favors Films by Jove Over Russian Film Dupes
Law.com (subscription required): Judge Rules for U.S. Company, Against Russian Agency