`50 Shades of Grey` trailer is most-watched of 2014

Los Angeles: The teaser trailer of erotic romance film `Fifty Shades of Grey` has amassed over 36 million views on Youtube in a week.

Starring Jamie Dornan and Dakota Johnson, the teaser has become the most-watched of 2014, according to technology firm Zefr, reportedly. The previous high was set by `Teenage Mutant Ninja Turtles`, which racked up 31 million views. The `Fifty Shades` book series by EL James has sold more than 100 million copies worldwide, and been translated into 52 different languages. `Fifty Shades of Grey`s supporting cast features Rita Ora, Marcia Gay Harden, Max Martini, Eloise Mumford and Jennifer Ehle. The film, directed by `Nowhere Boy` helmer Sam Taylor-Johnson, will be released in cinemas on Valentine`s Day 2015.