has returned to TV and cinema screens this month as part of a £4.5 million investment in the brand by Diageo.
The ad, known as Sea,
shows the ocean "dramatically cleansing itself of debris" and first appeared in 2007.
Smirnoff has reported an £8.8 million increase in off-trade sales since the ad's appearance.
Marketing manager Chris Lock said: "When we launched Sea in 2007, we were confident that we had found an innovative way of growing the profitable vodka category by creating an inspirational advert. A year on, this expectation has materialised into proven results, with research showing that the campaign significantly increased consumers' view that Smirnoff was always of the highest quality and purity."
The ad won Gold at the Eurobest Awards in 2007, in the TV & Cinema section, and topped the vodka marketing category at the Drinks International Vodka Challenge in 2008.