Sea is an advertising campaign launched by Diageo in 2007 to promote Smirnoff brand vodka. It centres on a 60-second commercial created by J. Walter Thompson, which premiered on 17 August 2007 in showings of The Bourne Ultimatum at select cinemas across the United Kingdom. Various tie-ins were launched, including the "Smirnoff Purifier", an online game, point of sale "Smirnoff purity kits", and a tour of a custom-built "Smirnoff Purification Installation" used to make potable samples of water taken from saline or otherwise undrinkable water at selected sites. In all, the campaign cost £5,000,000 to create, making it the largest campaign ever taken on by Diageo for its Smirnoff brand.