Blue Sky Studios; IMDb; Rotten Tomatoes; TV Tropes; Wikipedia
Well, as you might have guessed from the title, this movie is set in a world of robots. The central character is a young inventor named Rodney Copperbottom, who heads to the big city- Robot City- to follow his dream of working for the greatest robot in the world, Bigweld. But once there, he finds that Bigweld isn't around anymore, and his corporation is now being run by a robot named Ratchet (who actually does whatever his crazy mother tells him). Under Ratchet's control, the corporation will no longer produce replacement parts for robots, only expensive upgrades. Which many robots will not be able to afford, and since they won't be able to fix themselves, they'll become "outmodes." And the corporation will send out "sweeper" machines to collect outmoded robots to melt down into scrap metal.
Meanwhile, Rodney befriends a group of robots called the Rusties, the main one being Fender (voiced by Robin Williams). Plus Fender's little sister, Piper (voiced by Amanda Bynes), who has a crush on Rodney. And there are a few others, and they're all sort of cared for by a robot named Aunt Fanny. There's also an executive at the Bigweld Corporation named Cappy (voiced by Halle Berry), who Ratchet seems to be interested in only for her looks. But she doesn't like the changes he's made to the corporation, and ends up helping Rodney and his new friends. And they have to find Bigweld and try to get him to take back control of his corporation and reverse Ratchet's evil policy changes and stuff.
Well, I dunno what else to say, really. That's pretty much the plot, there there may be some subplots, sort of. The story of a boy robot who comes from a small town with poor parents, who goes out and makes his way in the world, and then returns to help out his folks. The story of a girl robot who likes the boy robot, but the boy robot may end up with a woman robot instead (though I don't think as much was done with this subplot as might have been). And of course, there's a great deal of humor in the movie, though I'm not sure how amusing I actually found most of it. But it was okay, there were some good bits. Yep, the whole thing was pretty darn okay... but still not quite as great as I might have liked.... (Oh, and as a dish washer in a restaurant, myself, I sometimes like to say I'm the second greatest dish washer ever, the first being Rodney's dad... but he doesn't really count, because he actually is a dishwasher.)