Actor Arjun Kapoor says he felt like a child when he shot with megastar Amitabh Bachchan for "Ki & Ka".. Amitabh, 73, will be seen making a cameo with his actress-politician wife Jaya for the film, which also stars actress Kareena Kapoor Khan. . The "Ishaqzaade" star also said that it was a "surreal moment" for him to work with Big B.. "A surreal moment when you work with coolest actor/star in our industry. Felt like a child on set with him Amitabh Bachchan," Arjun tweeted.. Directed by R. Balki, "Ki & Ka" revolves around gender equality. Arjun plays the role of a house husband, while Kareena plays a career-oriented woman.. This is not the first time that Amitabh has been a part of Balki's film.. The cine-icon has worked with the talented filmmaker in films like "Paa", "Shamitabh" and "Cheeni Kum".