Warner Bros. Shakes Up Senior Film Ranks, Ending a Power Struggle<br />Sue Kroll, one of Hollywood’s highest-ranking female executives, will leave Warner’s management team on April 1 to become a producer on the studio’s lot, where she will have offices next to Clint Eastwood<br />and work on films like a remake of “A Star Is Born.” Ms. Kroll had run Warner’s film marketing and distribution division.<br />LOS ANGELES — Ending a power struggle in its senior ranks, Warner Bros. on Tuesday gave control of worldwide film production, marketing<br />and distribution to Toby Emmerich, who rose through the studio by finding hits like “It” and shepherding “The Lord of the Rings” movies.<br />“I love movies, and working even more closely with the filmmakers who bring great stories to life is both a great opportunity<br />and an exciting new challenge for me,” Ms. Kroll said in a statement.<br />In an email to Warner employees, Kevin Tsujihara, the studio’s chairman and chief executive, called her “a legend in the marketing world.”<br />The changes are being made as Warner anticipates new corporate oversight.<br />Mr. Tsujihara positioned the shake-up, which included a promotion for Ms. Kroll’s longtime<br />lieutenant, Blair Rich, as necessary to enhance the studio’s competitiveness.<br />But the studio also had marketplace misfires like “Justice League” and “King Arthur: Legend of the Sword