It was a case of no pain, no gain for actor Jaycee Chan Cho-ming when he was repeatedly kicked in the head during the shooting of a key scene for his latest movie. As rookie cop Wai King-ho, Chan (left) is on the receiving end of some rough treatment from a gang boss, played by Wu Jing, in Invisible Target. 'It was the most memorable scene in the movie,' said Chan. 'I was hit on the head almost 40 times. I felt really dizzy and had to take some Panadol afterwards. 'Since the shots were in slow motion that meant I couldn't fake it. If the audience found out that it was only fake kicking it would have ruined the whole movie. So I was like, 'Just kick, just do it, hurry up'.' Chan said Wu was a very professional action actor, which eased the pain for him. 'Wu Jing knew exactly where to kick. He kicked very precisely. There are certain areas of your head that you can't hit hard. He only kicked the areas above my ears. 'If he missed and hit my ears, it could have been a river of blood because he was wearing a pair of military boots. He was carefully kicking my head with his toes. 'When you're acting out dangerous scenes, you've got to be focused and concentrate. Every inch of you should be ready for action.' Chan didn't expect to be involved in many action sequences, but did more than his fair share. 'I remember I was asked to jump into a fire which was almost seven feet high,' he said. The 24-year-old actor - who is working hard to emerge from the shadow of his father, Jackie Chan - said he was more afraid of director Benny Chan's temper than Wu's kicks. 'I'm sure I'll meet some other short-tempered directors in my career, but his range is huge. One minute he's very calm, looking after you, talking to you nicely, the next minute when we're running out of time or acting below his expectations, he just loses it.' Although Chan enjoys acting, music remains his primary passion. 'I think I'll never stop acting, but I like music more because it's far more personal. Acting is being someone else and it involves a lot of people, like a big family. But all you need to do with music is have a guitar in your hands.' 'Work hard, play hard' is Chan's motto. 'Many people only focus on my playful side, but it's good in a way because I'll make them disappointed. When I work, I work very hard and I hope that will gain me some respect.' Invisible Target opens Thursday