Chi-yan is an analyst who just broke up with her boyfriend as he was having a baby with another woman. Sean, a CEO of a broker firm, knows Chi-yan as her office is just opposite of his. He liked Chi-yan, and starts to take action when he sees what happened in the bus between Chi-yan, her ex, and his current wife. Kevin, an architect and an alcoholic, helped Chi-yan out when she was heartbroken about her ex. With Chi Yan's support Kevin decides to pick up designing again, and arrange meet up with her again a week later. Chi-yan forgets about it when she starts flirting with Sean. She and Sean arrange to meet on the night Chi-yan is supposed to meet Kevin. Sean goes to clear up a misunderstanding with a woman named Angelina, which leads to a one-night stand. Chi-yan is left waiting for Sean and Kevin is waiting for Chi-yan. When Chi-yan find out what Sean did she ends their relationship. Sean later leaves his office when the economy crisis causes his company to lose a large sum of money and goes to the US. Three years later, Sean comes back into Chi-yan's life as her new boss. He tries to win her heart again, but she is put off because he is easily seduced by women. When Chi-yan is becoming disappointed Sean, Kevin also comes back into her life. After their last meeting, he successfully started an architecture firm and moves to where Sean's old office was located. Both guys court her and she must choose between the aggressive "flower-hearted" Sean or the sincere Kevin.
Cast
Production
was contacted by Johnnie To in May 2010 for his role in the film. Wu was excited to work with To, stating that he's "always wanted to work with him. I've worked with all the big directors in Hong Kong except for him and Wong Kar-wai, and now I can tick Johnnie off my list." The ending of Don’t Go Breaking My Heart was unknown to the actors until the final week of shooting.
Film Business Asia gave Don't Go Breaking My Heart a six out of ten rating referring to it as a "entertaining but shallow rom-com from Johnnie To that doesn't really engage the emotions". Time Out Hong Kong gave the film a four out of six rating praising the dialogue and "expert comic timing". The Hollywood Reporter opined that "To dazzles with non-stop filmmaking tricks, so many will be happy to forget the disingenuity of the creative premise". Variety referred to the film as "tightly plotted and frequently funny, with suave lead perfs and glossy production design and lensing" while noting that "this mainstream, mostly Mandarin-language pic is squarely aimed at mainland auds and will do midrange biz in the region, but won't travel much elsewhere."