One Man's Way is a 1996 documentary in which Peter Singer documents the efforts and philosophies of animal rights activist Henry Spira, who is often remembered as the most effective animal activist of the 20th century. Henry Spira is most notably known for his tireless efforts to expose the the cruel animal experimentation that goes on behind doors, especially in the cosmetic industry.

• More Than Illusion Films
• Henry Spira
• Peter Singer