"Bill brought such authenticity to everything he did - in life and in his work. He was the quintessential Texan - incredibly charming, warm, generous, always with a twinkle in his eye. He loved his family, his friends, his work and gave them his all. I can't believe he's gone." Sigourney Weaver salutes her late Aliens co-star Bill Paxton, who died on Saturday (25Feb17).