Break Up Club (2010)

Joe (Jaycee Chan) is a 20-something slacker who only takes one thing seriously: his on-and-off girlfriend Flora (Fiona Sit). After their latest breakup, Joe goes to an audition for a documentary by director Barbara Wong (the director, playing herself). Handed a camera, Joe records his discovery of a magical website that reunites him with Flora at the price of breaking up his best friend (Patrick Tang) and his girlfriend. However, despite the efficiency of the website, Joe's refusal to change his immature ways and Flora's attraction to a talented graffiti artist (Hayama Hiro) threaten to break them up once more.