At World's End (2009)

A British television crew stumbles upon a rare white flower deep in the Indonesian jungle—but before they can examine it, a Danish hermit named Severin guns them all down. A Danish special forces unit, led by a psychiatrist, is dispatched to investigate. They discover Severin insists he is 129 years old, crediting the flower for his enduring youth. Before long, everyone is racing to claim the bloom, which seemingly grants immortality.