Millions Flock to ‘50 Shades of Grey", Dominating Box Office As It Eyes Record-Breaking $76 Million OpeningMillions are flocking to entertain themselves with Sexual Immorality thru their Pocketbook with The Universal drama opening to $30.2 million on Friday on its way to a projected, record-breaking $76 million long weekend. If estimates hold, the R-rated pic will easily dominate the previous Presidents Day weekend record holder, “Valentine’s Day,” for the best showing ever for the holiday. Garry Marshall’s “Valentine’s Day” opened to $63.1 million in 2010. The erotic romance could also break the current Valentine’s Day box office record, which was also set, appropriately enough, by “Valentine’s Day” with $23.4 million. Early Friday estimates had pegged the film for an $85 million long weekend debut after a record-setting Thursday-night launch of $8.6 million — overtaking “Fast & Furious 6″ as Universal’s highest-grossing latenight preview of all time. The film, which began rolling out internationally on Wednesday, opened at No. 1 in 56 of its 57 territories, including the U.K., France, Germany and Russia. It grossed $38 million on Friday for an early total of $66 million. The film is on track for an international weekend take of $158.3 million, which would make it Universal’s second highest opening weekend of all time, just behind “Fast & Furious 6″ ($160.3 million). “Fifty Shades of Grey,” based on E.L. James’ bestselling romance novel, carries a fairly modest $40 million production budget. The film is directed by Sam Taylor-Johnson and stars Jamie Dornan as an enigmatic bondage-loving billionaire who falls for Dakota Johnson’s sexually inexperienced college student. The holiday weekend’s other new entry, “Kingsman: The Secret Service,” is also doing strong business. More