This 35mm screening is one of three films on New Year's Day on offer at £1 for Prince Charles Cinema members. You can find details on the website.
Chicago Reader review of The Good, The Bad & The Ugly:
Sergio Leone's comic, cynical, inexplicably moving epic spaghetti western (1966), in which all human motivation has been reduced to greed—it's just a matter of degree between the Good (Clint Eastwood), the Bad (Lee Van Cleef), and the Ugly (Eli Wallach). Leone's famous close-ups—the "two beeg eyes"—are matched by his masterfully composed long shots, which keep his crafty protagonists in the subversive foreground of a massively absurd American Civil War. Though ordained from the beginning, the three-way showdown that climaxes the film is tense and thoroughly astonishing.
Here (and above) is the trailer.