Sundance Channel, tonight, presents a double feature that would have been one of the ultimate double features for my then-teen daughter: The Princess Bride, followed by Labyrinth. First up: This 1987 delight, adapted by screenwriter William Goldman from his own novel and directed by Rob Reiner. Cary Elwes, Robin Wright, Mandy Patinkin, Wallace Shawn, Christopher Guest, Chris Sarandon, Andre the Giant – and don’t forget Peter Falk and a young Fred Savage – help make this flawles