How better to launch the reopening of a family-oriented community theater than with a midnight showing of the latest Harry Potter flick? Newly installed operator Rialto Cinemas — who signed their lease yesterday afternoon — had the good fortune of snagging a print of Harry Potter and the Half-Blood Prince. The film opens nationwide on Wednesday, July 15, and Rialto Cinemas plans to join the fray by officially reopening the Cerrito Theater’s doors with a late-night showing shortly after midnight on Tuesday the 14th (see the photo for visual evidence). Tickets will go on sale early next week.