Brother's Keeper(1998)

Imagine taking care of someone really immature, and your 8-year-old son as well.

Widower and professor Porter Waide has his life turned upside down with the arrival of his football player brother, Bobby, who's gotten into so much trouble that he's been contracted to live with a responsible relative. This move also disrupts the lives of Porter's impressionable son, Oscar, and Bobby's perpetually annoyed agent, Dena.