️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ During this time he also became a professional boxer, winning his first nine fights but retiring after a unsuccessful tenth.<unk> During this time he also became a professional boxer, winning his first nine fights but retiring after an unsuccessful tenth.<unk> During this time he also became a professional boxer, winning his first nine fights but retiring after an unsuccessful tenth. <unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk><unk>
1915 San Francisco World's Fair, where some of his work was displayed. During this time he made models, including a dinosaur and a caveman, which he animated with the assistance of a local newsreel cameraman.<unk> During this time he made models, including a dinosaur and a cave man, which he animated with the assistance of a local newsreel cameraman. San Francisco exhibitor Herman Wobber saw this 90-second test footage and commissioned O'Brien to make his first film, "" (1915) for a budget of $5,000.