No historian recorded their heartaches, triumphs or names. Yet Ayla and others like her left indelible imprints. They continued humankind's long march toward civilization...and away from more primitive groups like The Clan of the Cave Bear. Daryl Hannah (Splash, Blade Runner) is Ayla in a richly detailed, beautifully filmed screen version of Jean M. Auel's best seller. Separated from her Cro-Magnon people by a calamitous earthquake, Ayla lives with...