Here's one of those rare things: a one-joke comedy that actually works. Danny DeVito plays the dim-witted scuzzball who discovers naive, intelligent Arnold Schwarzenegger is his genetically engineered brother. Comic moments abound as the odd couple team up to find their long-lost mom - Arnie's first awkward attempt at romance with Kelly Preston (now Mrs John Travolta) is a highlight. DeVito is on great form and Arnie shows that he can handle comedy, although when the pair (and director Ivan Reitman) teamed up again for Junior, the result wasn't quite as successful.

Julius and Vincent Benedict are the results of an experiment that would allow for the perfect child. Julius was planned and grows to athletic proportions. Vincent is an accident and is somewhat smaller in stature. Vincent is placed in an orphanage while Julius is taken to a south seas island and raised by philosophers. Vincent becomes the ultimate low life and is about to be killed by loan sharks.