Build your own apps that work on real phones and tablets. This Bitsbox coding kit of thirty identical books has dozens of app building projects ranging from the simple (2 lines of code) to complex (60+ lines of code). The theme of this Bitsbox is Lights! Camera! Action! Who doesn't love a good movie? At Bitsbox, we believe that movies and apps have a lot in common. The both tell stories, both are creative, and both can be created with code!