Complex sentence: In 2003 there were over 700 entrants to the festival with only 16 finalist being screened in public parks and cafes around Australia, in Sydney it's home town over 100 000 packed into the Domain Park to watch the finalist on large video screens.
Split into simpler sentences: In 2003 there were over 700 entrants to the festival and 16 finalists were screened in public parks and cafes around Australia. In Sydney, over 100 000 people packed into the Domain Park to watch the finalists on large video screens.