Supernanny (2005)

The Clause kids -- Brandon, 10 and Caila, 8 -- are "tweenage terrors," disrespectful, manipulative and resentful, but the key to change rests with their parents. Mom is a pushover, and Dad is too laid back and laissez faire. Entering their pre-teen years, these kids are at a critical point when they need a solid relationship with their parents, which is lacking now. Behind the kids' backtalk, swearing, verbal threats and toddler-like tantrums are years of dysfunction, disorder and chaos. Dad especially fears never having a close relationship with his kids and losing them completely.