Our protagonist is Rodney Copperbottom, an earnest young inventor 'bot (voiced by Ewan McGregor) who wants to follow in the footsteps . . . er, make that tracks . . . of his hero, Bigweld (Mel ...

Rodney stumbles onto this plot and with the help of a clanky, wise-cracking, fire-engine-red friend named Fender (Robin Williams) and a slinky corporate exec (Halle Berry), the plucky gang set out ...