“In the Line of Fire” began its European campaign in the U.K. in robust style last weekend, registering the biggest opening ever for a Clint Eastwood vehicle here.Wolfgang Petersen’s thriller grossed T1.219 million ($ 1.8 million) in four days on 198 screens. “We’re very pleased,” said Columbia TriStar adpub director Jon Anderson, who noted the film had the highest per-screen average — T6,161 ($ 9,241) — in the market. That wasn’t enough to dislodge “Jurassic Park” from its perch as the No. 1 film. In its seventh weekend, the Universal/UIP phenomenon took T1.673 million ( $ 2.5 million) on 445 prints, pushing the cume to T39.4 million ($ 59.1 million). “Much Ado About Nothing” also debuted last weekend, garnering a handsome T581 ,284 ($ 871,926) on 106 screens. Kenneth Branagh’s film, which will top $ 20 million in the U.S. this weekend, bows in Germany Thursday. It’s been a steady earner in France, Switzerland and Israel.