The Institute has staged a retrospective tasting of red Bordeaux annually since the 1970s. This flagship event in its calendar looks at a vintage at four years of age and is believed to be the only event of this type and scale in the world. Around 100 producers usually participate and all the major communes in Bordeaux are represented. The event attracts tasters from around the world, including Masters of Wine, senior figures from the international wine trade, journalists and private collectors. In 2010, the Institute made this short film which provides an insight into the event.