whats the name of movie about 10 year reunion

Man going to reunion, Hires a Women to help. she manuvers things so she goes to reunion as his wife. Get to reunion and all classmates are doing great. Our man was chosen as Most likely to succeed but can't do anything. Women comes up with a plan. They pawn him off as a special trouble shooter who goes into companies undercover and then cleans them up. He is a fake of course. All this clasamates want to Hire him to clean up their companies.
what is the Name of this film and where can I get a copy?