This particular Identify this question is just a horribly written one. It's not known if it's from a movie, tv show or just a fashion shoot.
It's worse than a second hand knowledge question such as "I heard of this movie from someone" For example this question about a movie his sister described (http://movies.stackexchange.com/questions/19531/evils-are-in-glass-building-hotel-and-a-kid-enters-ithttps://movies.stackexchange.com/questions/19531/evils-are-in-glass-building-hotel-and-a-kid-enters-it)
However there are good examples such as this GIF question. http://movies.stackexchange.com/questions/19542/trying-to-find-this-dinosaur-moviehttps://movies.stackexchange.com/questions/19542/trying-to-find-this-dinosaur-movie Overall it doesn't help anyone except the OP but it might interest someone. "I never knew Denise Richards was in this type of movie. I've got something new to watch on bad movie night."
Overall the problem isn't "can you identify this" it's that the asker has no first hand knowledge of what they are asking. I propose instead of banning identify this questions of any kind we ban second hand knowledge questions like these two because there is no conclusive way that the OP can even be sure that the question has been answered.