I really like this film and will watch it again and again.  Harrison Ford plays a very determined President.  He's determined no to sit by and do nothing when terrorists destroy other countries; he is determined not to negotiate with terrorists; he is determined to save his family and other hostages when terrorists take over Air Force One; and very determined to get their leader off his ship and tells him so.  After that, he's determined to send as many as possible to safety before the ship breaks apart upon impact with the ocean.  He does accomplish his goals with the help of his cabinet via phone calls or fax machine when he is not dodging bullets in various parts of the plane.  Glen Close plays an equally determined Vice President trying to get all the hostages free and save President and his family.  Gary Oldman plays a terrorist leader who is determined to lead Russia into a new Golden Age of power and glory and plans to undermine the President's new policy of not negotiating with terrorists by threatening to kill his family.