Were Edwin Greenwood and Andrew Lau Wai-Keung both directors?
Edwin Greenwood Edwin Greenwood (1895-1939) was a British screenwriter and film director.
All That is Bitter is Sweet All That Is Bitter Is Sweet (Traditional Chinese: 大藥坊; literally "The Great Apothecary") () is a 2014 Hong Kong period, medical, romance drama produced by TVB, starring Linda Chung, Ruco Chan, Raymond Wong Ho-yin and Natalie Tong as the main leads, with Pierre Ngo, Sammy Sum, Shirley Yeung, Jazz Lam and Elliot Ngok in main supporting roles. Filming took place from November 2013 to February 2014. The drama began broadcasting on September 8, 2014 on TVB Jade channel during its 8:30 - 9:30 p.m. timeslot, and will finish airing on October 17, 2014 with 30 episodes total.