Amongst all the stellar post-apocalypse survival movies made over the last decades, Finch doesn't add one thing new to the canon. As soon as the robot he's created starts speaking like naive boy, disobeying direct orders and very quickly starts displaying emotions, it all became a bit childish for me. Audiences are far too sophisticated for that sort of sentimental, unrealistic claptrap. That being said, Tom Hanks' charm and ability to bring humanity to any role he plays is always a pleasure, and the visual effects were -- well, not amazingly impressive, but interesting enough. If you're a fan of either futuristic themes or Tom Hanks himself, give it a go, but otherwise your time's better spent elsewhere.
