Box office top 20: NEW YORK (AP) — M. Night Shyamalan's psychological thriller "Split" blew away box-office expectations, earning $40 million in ticket sales over inauguration weekend, according to final figures Monday. The director's second collaboration with the low-budget horror outfit Blumhouse Productions proved an unexpected hit at the North American box office. Though originally expected to vie with the Vin Diesel action sequel xXx: The Return of Xander Cage," ''Split" doubled its business. The top 20 movies at U.S.