Here's a new Instagram comedy series called I got you, designed to be watched on your mobile phone. The story is simple: a young Pasifika woman starts a side hustle giving relationship advice - despite never having been in love herself! I got you is what's called a "vertical show", the creation of brother and sister Stallone and Abba-Rose Vaiaoga-Ioasa, in partnership with star and co-writer Sieni Leo'o Olo . Until now their company Cadness Street has been best known for popular, self-funded movies like Three Wise Cousins and Take Home Pay. Lynn Freeman talks with Stallone Vaiaoga-Ioasato find out what drew the siblings to the ultra-small screen - and what exactly is a vertical show?