The top films at the North American box office

Feb 15 (Reuters) - Following are the top 10 movies at North American box offices for the three days starting Feb. 13, led by "Fifty Shades of Grey," according to studio estimates compiled by Reuters. 1 (*) Fifty Shades of Grey...................$81.7 million 2 (*) Kingsman: The Secret Service...........$35.6 million 3 (1) The SpongeBob Movie....................$30.5 million 4 (2) American Sniper........................$16.4 million 5 (3) Jupiter Ascending......................$ 9.4 mi