THE BEARDED, WELL-DRESSED European arrived in Los Angeles, ready to pull off an audacious heist. Unlike Hans Gruber, though, Alan Rickman got away with it. As the urbane, supremely confident German kingpin, a preening cat of a villain, he stole Die Hard — incredibly, his first film. “Very early on, Jackie Birch, the casting director, told me breathlessly, ‘This guy is fantastic — he can do anything,’” remembers screenwriter Steven E. de Souza. “I met him when he came in for a wardrobe fitting, got the way he spoke into my ear, and that informed everything I did from that point on.”
In Nothing Lasts Forever, the 1979 Roderick Thorp novel on which the movie is based, the character’s name is Tony Gruber and he’s a blowhard, prone to extended…