Veteran Hong Kong filmmaker and actor Raymond Wong Pak-ming has begun serving his five-month prison sentence for insider trading after relinquishing his bail.The 80-year-old told West Kowloon Court on Wednesday that he would spend time behind bars while awaiting an appeal in the High Court.Wong, a prominent figure in Hong Kong’s film industry for decades, was convicted last month of sharing insider information regarding Transmit Entertainment, a television series production company formerly...