British studio Aardman Animations, whose previous credits include the stop-motion classics Creature Comforts
(1989) and THE CURSE OF THE WERE-RABBIT (2005), tries its hand at CGI animation in this lively if derivative romp. Upper-class rodent Roddy (voice of Hugh Jackman) is happily ensconced in a literal golden cage in his owner’s Kensington mansion when an ill-mannered sewer rat named Sid (Shane Richie) pays an unwelcome visit. Roddy conspires to flush his houseguest home via the toilet but winds up taking the one-way trip himself. After a wild ride through the London sewer system, he's unceremoniously dumped in the middle of a teeming "ratropolis." Despera...