《BBC地平线:宇宙何其小》 是Toby MacDonald导演的作品，发行于2012年（英国），由约翰·汉纳等主演的一部记录片。
讲述了：Horizon plunges down the biggest rabbit-hole in history in search of the smallest thing in the Universe. 　　It is a journey where things don't just become smaller but also a whole lot weirder. Scientists hope to catch a glimpse of miniature black holes, multiple dimensions and even parallel Universes. As they start to explore this wonderland, where nothing is quite what it seems, ...