LOS ANGELES - An 11th-hour deal was reached Saturday, averting a strike of film and television crews that would have seen some 60,000 behind-the-scenes workers walk off their jobs and would have frozen productions in Hollywood and across the U.S.After days of marathon negotiations, representatives from the International Alliance of Theatrical Stage Employees and from the studios and entertainment companies who employ them reached the three-year contract agreement before a Monday strike deadline, avoiding a serious setback for an industry that had just gotten back to work after long pandemic shutdowns.Jarryd Gonzales, spokesman for the Alliance of Motion Picture and Television Producers, which represents the studios and other entertainment.