Bill Travers he played the title role in "Abraham Cochrane" which had a short run. Travers' most famous film role came when he played the conservationist George Adamson in the highly successful 1966 film "Born Free", about which experience the two co-wrote the book "On Playing with Lions". He co-starred with McKenna and the experience made him and his wife very conscious of the many abuses of wild animals in captivity that had been taken from Africa and other natural environments around the world. Travers received an offer to play a support role in "Duel at Diablo" (1967); during filming he broke
Bill Travers a leg and dislocated a shoulder. He played the title role in a British TV version of "The Admirable Crichton" (1968), alongside his wife, and had a small part in Peter Hall's adaptation of "A Midsummer Night's Dream" (1968). Travers teamed up with James Hill, the director of "Born Free", to make the documentary, "The Lions Are Free" (1969), which both men directed. Travers and McKenna made another "animal movie", "Ring of Bright Water" (1969) for which he also wrote the script. They followed this with "An Elephant Called Slowly" (1970), which Travers helped write and produce with James Hill,