David Kwok's Tiny animated ambitions
10 April 2013 Last updated at 02:45 BST
Our special series on entrepreneurs continues with a look at the 3D animation studio, Tiny Island Productions, set up by Singaporean David Kwok.
After working as an engineer for many years, he abandoned his government job, starting at the bottom to carve out a new career in cartoons and animation.
Since he set up his company in 2007, it has grown from four staff to 120, servicing clients in the US and Europe, and includes an animation school. He tells the BBC his passion lies behind his success.
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