Warner Bros. has once again proven a semi-simultaneous international and domestic launch can generate impressive B.O. numbers with the right formula. “The Bodyguard” will likely break the $ 100 million mark both internationally and domestically by the end of the weekend.In its first four days in Germany, pic grossed $ 5,363,407, the third-highest grosser for that territory. As of Jan. 10, the international gross was $ 95,777, 000 (yesterday, domestic was $ 96 million-plus). Wayne Duband, prez of Warner Bros. Intl. theatrical division, said the success is a combination of an international star like Kevin Costner and a winning pop star like Whitney Houston, whose “I Will Always Love You” is a chart topper worldwide. International release of “The Bodyguard” began Dec. 4 in Switzerland ($ 2,829,175); Dec. 5 in Korea ($ 5,723,905); Dec. 9 in Japan ($ 21,817,890), France ($ 10,818,978) and Belgium ($ 2,583,600); Dec. 10 in Holland ($ 3,639,475); Dec. 18 in Italy ($ 14,241,483), Spain ($ 8,193,950) and Israel ($ 1,203,759); Dec. 26 in the U.K. ($ 10,368,155).