Los Angeles — Filmmaker George Lucas's "Star Wars" empire — the movie franchise, not Darth Vader's fictional galactic government — planted him firmly atop Forbes magazine's third annual ranking of the wealthiest US celebrities which was released on Tuesday. The net worth of the 74-year-old writer, director, producer and creator of the enduring space saga was estimated at $5.4 billion, leading a list that also included athletes, musicians and one wealthy illusionist. — Reuters