It's the Kid's World (2000)

It's the Kid's Word is a comedy about a child actor who took early retirement and "went out on top"--six months ago. He's rich beyond belief and keeps a full-time staff of retainers and attorneys working overtime to maintain and oversee his dynasty. Having conquered the real world, "The Kid" matriculates into the world of his cellphone game environment where he can confront and conquer the characters and situations he discovers there. From within the cellphone he makes calls to his friends eliciting their help in overcoming enemies and obstacles within the game.