The Kingdom would appear to hold the keys to the top position at the box office this weekend, judging from analysts' projections, but it's unlikely to earn more than $18-22 million, and the overall box office is expected to remain in its annual September slump. Targeting the "tween" audience, Disney's The Game Plan, starring Dwayne "The Rock" Johnson, is likely to earn $14-18 million and place second. But MGM is unlikely to pull out of its recent tailspin, with Feast of Love, starring Morgan Freeman and Greg Kinnear, expected to do just $3-5 million.