Dinner for Schmucks is an outrageous comedy that was written by David Guion and Michael Handelman. The movie was directed by Jay Roach and features Steve Carell and Paul Rudd. The story follows Timothy Conrad (played by Paul Rudd) as a financial executive who manages to entice the wealthy Martin Mueller (played by David Walliams) to become his firm's client. They agree to invite him to a special dinner where Tim must bring along a talented guest. The winner will earn a trophy. Tim soon learns it is really a dinner meant for idiots and the only award is that of being designated as a big loser.
Julie, Tim's girlfriend (played by Stephanie Szostak) has landed a deal as curator for eccentric artist called Kieran Vollard (played by Jemaine Clement). Tim proposes unsuccessfully to Julie.
After that, Tim has a car accident, hitting an IRS staff member named Barry Speck (played by Steve Carell) with a Porsche. Barry tries to save a mouse in the road. While helping Barry pick up his things out of the street, Tim discovers that Barry has a strange mouse collection hobby - deciding he is perfect as the idiot guest for the dinner.
Julie leaves Tim after a series of mishaps. Tim still loves her a great deal. When Barry sees that Julie is waiting in the doorway, he pressures Tim into describing his remorse at how badly he messed things up.
Barry explains to Julie's new guy who is waiting - Vollard that if he takes Julie away, it will destroy Tim. As a result, Vollard steps aside. In the end, Tim and Julie marry and honeymoon in Paris.
Barry starts seeing a woman named Darla and does some art with Vollard. He also hosts a breakfast for champions for the losers. Therman authors a book while in a mental hospital. Tim and Julie start a Swiss museum with Mueller. Fender's company tanks and Forbes calls him Wall Street's Biggest Loser.