Just in time for the deluge of holiday films, Cinema 7 on Garden Valley Boulevard in Roseburg has added a screen to its existing space. It's now an eight-screen facility, renamed Roseburg Cinemas.The new screen will "bring more product and you have more selections to choose from," said Don Immenschuh, vice president of Ashland-based Coming Attractions Theatres Inc., which owns both Roseburg Cinemas and Harvard Cinema."There's a lot of films out and we thought we might as well put the other screen in," Immenschuh said of Roseburg Cinemas, at 1750 N.W. Hughwood Drive.The three-screen Harvard Cinema, at 3161 W. Harvard …