ATLANTA, Georgia, June 12 -- CNN, a cable channel owned by Time Warner's Turner Broadcasting System, issued the following press room announcement: CNN Films announced today that it has acquired North American broadcast rights to JIMMY CARTER ROCK & ROLL PRESIDENT. The documentary was created by the award-winning director Mary Wharton, producer Chris Farrell, and writer Bill Flanagan. Originally set to open the 19th annual Tribeca Film Festival in April, the feature will now be the closing film  more PR