Emmanuelle Vaugier plays a suma cum laud college graduate trying to break into the world of advertising. She interviews with one of the hottest agencies in the field, where she thinks she's interviewing for an account executive position but is instead hired as the nanny for the CEO's two children. Along the way she begins to fall in love with one of the agency's male executives who is struggling to come up with a pitch for a major client. Thinking that the executive will think less of her for being a nanny, she lies and tells him that she's a "special consultant" to the agency, hoping to impress him. As the nanny, she teaches the children that Shakespeare can be fun... if you set up your own play. Regimented in their behavior by their over-bearing mother and absentee father, the children embrace their new nanny's ideas of how to do things (hence the references to the "Sound of Music").
Already we know how the movie will end, but what makes you want to stick around and watch is (a) Ms. Vaugier, who does a great job of being the playful nanny as well as the business-first executive, and (b) a simple, straight-forward plot that you can watch over hot cocoa and spongecake.
You probably won't cry at the end, but at least you'll laugh at the more humorous moments.