Splitting Heirs is a dull mistaken identity comedy about a British Duke (
Eric Idle) who is switched at birth when his parents accidentally left him behind in a restaurant, picking up the wrong baby by mistake. Idle is raised by Pakistanis and when he discovers his true identity, he begins plotting to kill the American (
Rick Moranis) who is the unwitting imposter. His plans go awry, and Idle hires a lawyer (
John Cleese) to help him regain his title. ~ Stephen Thomas Erlewine, All Movie Guide