Forbidden Kingdom' top slot

Forbidden Kingdom' takes top box office slot

• Story Highlights
• "The Forbidden Kingdom" features Asian superstars Chan and Li in multiple roles
  
• Last weekend's No. 1 movie, "Prom Night," fell to third with $9.1 million
  
• Romantic comedy "Forgetting Sarah Marshall" took second place with $17.3 million
  
• Movie attendance is running 6.5 percent behind that of 2007