Adventurer by instinct, he is now actor by accident, he says. However, having "happened into the movies" because of their call to his dramatic sense, and because he "hadn't yet done them," he finds them such a challenge that he feels he must make good, in order to prove himself to himself.

Lean and brown, gay and glamorous, no more engaging personality could be found to portray the reckless Captain Peter Blood in the Sabatini tale which records the exploits of a young Irish doctor, who is sold into slavery and turns pirate.

Flynn inherited his craving for excitement from his active ancestors. He is fighting his duels in "Captain Blood" with his historic family sword, which was presented to Lord Terrence Flynn by a loyal follower of the Duke of Monmouth in 1686, the period in which the film is set.
As a boy, Errol made sporadic attempts, invariably failures, to live up to the dignity of his scholarly surroundings. His father was a professor of biology at Cambridge. When Errol wasn't reading adventure stories, or playing games, he cast fleeting glances at his books, in English and French schools.

Fame as a boxer, which he won at nineteen at the Amsterdam Olympics, failed to satisfy his budding, restless vitality. Probably swaggering a bit in his strong, young manhood, he went to New Guinea where, as British Agent, he was sent out to make peace between native tribes. Learning their dialiects was not difficult, because they have few words and no tenses.
"I would point to objects and try to copy their grunts or shrill exclamations. After a time we would get together, more or less. Maybe," his smile flashed, "that was where I got my training as an actor. I should be in pantomime, what?"