 CONT: Just before James Bond enters the room filled with enemies  during his training exercise at the beginning of the film, he throws  a grenade from the rooftop through the window. The grenade lands on  a table with a chessboard used by two foes. When Bond swings through  the same window in the next scene it gets clear that it was  impossible for him to throw the grenade right on the chessboard  because the table is too far away from the window.