It’s official: Warner Bros. grabbed the mantle of top U.S. distributor overseas last year as well as the domestic distrib crown.And the majors collectively increased their billings from the foreign markets by nearly 6% over the 1991 tally. The studios accumulated a grand total of $ 1.261 billion in rentals in calendar ’92, up from $ 1.193 billion. Warner Bros. claimed pole position with a 22% market share ($ 288 million in rentals), ahead of Columbia TriStar’s 20% ($ 254 million). Disney’s Buena Vista Intl. was third with 16% ($ 205 million); 20th Century Fox ($ 173 million) and Universal ($ 171 million) were in a virtual dead heat for fourth, with 14% apiece. Bringing up the rear were Paramount with 11% ($ 137 million) and MGM with 3% ($ 33 million). As notedin Feb. 22 Variety, it was a record year for both WB and Col TriStar. It was BVI’s second-highest year ever, bested by 1990 (when “Pretty Woman” reigned) and Universal’s third best.