cage film s third week at us top nicolas cage movie national treasure has topped the us and canada box office for the third week in a row.  national treasure made $17.1m (£8.8m) in ticket sales from friday to sunday  according to studio estimates  taking its total to $110.2m (£56.7m). comedy christmas with the kranks  starring tim allen and jamie lee curtis  was in second place. the polar express entered in third place while jude law film closer made its debut at number six.  oliver stone s big-budget epic alexander  starring colin farrell  followed last week s disappointing sixth-place opening with a slump to seventh place and takings of $4.7m (£2.4m). critics have savaged the three-hour epic  which reportedly cost $150m (£77m) to make. national treasure  which sees cage s character ben gates chase a hidden fortune  has been made by disney studios. it is cage s fourth collaboration with jerry bruckheimer  who is usually noted for his male-orientated action films.