Article continues below advertisementPrincess Diana's nephew Louis Spencer, Viscount Althorp, has quietly embarked on a Hollywood career under a pseudonym - making his acting debut in a short film that tackles sexual exploitation in the entertainment industry.The 31-year-old aristocrat, who will one day inherit the family's Althorp estate, appears in the drama Pinch & Ouch under the stage name Louis Lyons.Article continues below advertisementSource: @kittyspencer/instagramPrincess Diana's nephew appears in the drama 'Pinch & Ouch' under the stage name Louis Lyons.