Read our Privacy noticePosters promoting the horror film The Mummy have been banned from the London Underground, over fears the realistic depiction of a deceased child could be distressing. However, Tube adverts must follow strict guidelines, such as no political content or adverts showing food high in fat or sugar. open image in gallery A poster advertising the Irish rap trio Kneecap was banned ( PA )It read: “Kneecap. An advert for artisanal cheesePosters advertising an artisanal cheese company were banned in 2023 from the London Underground for promoting an unhealthy diet that’s high in saturated fat. But TfL didn’t allow the adverts in 2018 and said it had a "serious responsibility" over advertising, the BBC reported.