I due mondi di Charly

A mentally challenged man named Charly (Cliff Robertson) desires to become smarter so that he wouldn't always be picked on by his so-called friends at his workplace. However, he has made no progress despite his efforts of going to school. One day he gets a chance to undergo some experimental brain surgery and his intelligence skyrockets, making him a genius. Still, he cannot stop feeling like an outsider or find happiness with Alice, the woman he loves (Claire Bloom).

The director uses many split screens and other alienating techniques to portray the fragile mental state of Charly; at points they get rather annoying and look dated. The montage near the end, depicting the progression of Charly and Alice's relationship, comes across as rather hasty, considering the scene directly preceding it. Mostly the story advances fine though, and the pondering about the surgery's effects on Charly's psyche is interesting – there should have been more of it, actually. Robertson's Oscar-winning performance in the lead role is decent, although I preferred his calm 'intelligent Charly' to his naïve 'challenged Charly'.