Once again, the Guild Cinema in Nob Hill is asking us to spend the summer in the dark. Digging deep into the studio vaults, programmers have come up with another fine collection of classic film noir double-features. The festival continues this week with the classic 1948 Barbara Stanwyck chiller Sorry, Wrong Number and 1955's suburban hostage drama The Night Holds Terror. Next, it's a mix-up of old and new with 1985's twisty Texas murder triangle Blood Simple and 1955's gritty screwball noir Tight Spot (starring Ginger Rogers and Edward G. Robinson). The 1947 Anthony Mann classic Railroaded is paired with the 1949 kidnap drama The Threat. On Wednesday and Thursday, the festival closes out with John Boorman's 1967 hitman drama Point Blank (actor Lee Marvin, yay!) and 1956's psychological noir Nightmare (writer Cornell Woolrich, yay!).