Believe it or not, Nick Cheung and Eddie Peng shared a kiss while on set.During a stunt flip, Eddie's lips brushed Nick's by accident. The incident prompted Peng Yu-Yen to joke that their relationship got 'even better' after the kiss.Cheung Ka Fai joked, "Luckily it was a kiss scene with an actor, otherwise I would have to prepare a report for my wife." They also demonstrated the embrace afterwards. Cheung Ka Fai also said, "I worked on this film and my finger broke, I traded a finger for this film!"Nick and Eddie are starring in the film Unbeatable, which is in the running for the Shanghai Film Festival Golden Goblet Award. Â Cheung Ka Fai and Peng Yu-Yen shared many scenes together in the film, including being locked up during training.