Fifty Shades of Grey: 5 of the Best ‘Fan Previews’ on YouTube [VIDEOS]

The "Fifty Shades of Grey" movie has yet to start production. In fact, no one has been named for the roles of Christian Grey and Anastasia Steele. But the fans could hardly wait. Plenty of 'Fifty Shades' fan previews are now available on YouTube, some even using the Universal Pictures logo for a convincing effect.

Universal Pictures and Focus Features have acquired the film rights to the E.L. James series.

The fan-made previews are typically creative and meticulous, implying a lot of time spent on gathering clips from various sources to weave together a believable film trailer.

Fans also use these videos to campaign for their favorite actor and actress for a "Fifty Shades" casting. Celebrities you will see in the videos below include the poll favorites for the lead roles: Matt Bomer, Ian Somerhalder, and Alexis Bledel.

Henry Cavill is also being cast by fans for the role of Mr. Grey. For Ms. Steele, there is some sort of campaign for Lucy Hale.

Another video went to as far as "casting" the supporting roles. You will also see Blake Lively and Matt Damon in these clips.

The "Fifty Shades of Grey" trilogy is an adult fiction written by E.L. James. She was inspired by the 'Twilight' saga of Stephenie Meyer, but it has been reported that neither Robert Pattinson nor Kristen Stewart will star in 'Fifty Shades.'

'Harry Potter' and 'Wallflower' star Emma Watson is also being widely pushed by fans for the role of Anastasia Steele, but she has not been tapped for the project just yet.

Film producers Michael De Luca and Dana Brunetti are working with E.L. James, so the author retains some creative control during the filmmaking process. However, even she has refused to speak on who she would like to cast for the two most important roles in her work.

Are you a "Fifty Shades" fan? Watch the clips and pick your favorite below.

Fifty Shades of Grey: 5 of the Best 'Fan Previews' on YouTube

5. Fifty Shades of Grey Trailer - Christian Grey
Song: What if This Storm Ends | Artist: Snow Patrol

Christian Grey: Henry Cavill