AD Quality Auto 360p 720p 1080p Top articles1/5READ MOREThe joys and headaches of holiday travel: John PhillipsDespite high expectations from director Brian De Palma and a cast including Josh Hartnett and Scarlett Johansson, the gruesome murder mystery “The Black Dahlia” opened in the second spot with $10.4million. The film, from Universal Pictures, fared better than last week’s debut of “Hollywoodland,” which sank from the No.2 spot to ninth place this week. Both films deal with real-life Los Angeles mysteries. It was another down weekend at the box office, although moviegoers helped Sony Pictures and Dwayne “The Rock” Johnson score with the football flick “Gridiron Gang.” The drama about a football team at a Los Angeles juvenile detention center took in an estimated $15million in ticket sales to claim the top spot for the weekend. The debut gave distributor Sony its 10th top opener this year, setting an all-time industry record. Overall, box office revenues for the top 12 films dipped 12.3percent from the same weekend last year. That makes for two down weekends in a row, cutting into the single-digit revenue gains studios have enjoyed so far this year. Studio revenues are still up 6.2percent over last year and attendance is also up 3percent, according to box office tracker Exhibitor Relations Inc. 160Want local news?Sign up for the Localist and stay informed Something went wrong. Please try again.subscribeCongratulations! You’re all set!