Complex sentence: It was rumoured that Ben planned on leaving Neighbours some time soon due to him wanting to further his career in movies and his last performance as Stingray was aired in Australia on 21st March 2007.
Split into simpler sentences: It was rumoured that Ben had planned on leaving Neighbours for some time due to wanting to further his career in movies. His last performance as'Stingray' was aired in Australia on 21st March 2007.