Los Angeles-based RealD, which manufactures 3D cinema equipment, has signed on another theater chain, Hollywood Theaters. According to the two firms, they are in a partnership to equip a minimum of 100 screens across the country and overseas with RealD's equipment. Financial details of the win were not disclosed. Hollywood Theaters is a chain based in Portland, Oregon, with 529 screens in 20 states. The two firms said 64 of those screens are being installed by mid-December of this year.