Is there something wrong with IMDb ratings?

Rating: 1/10 (6 April 2011)

I watched this film. It was a waste of two hours of my life. Nothing happens. The girl protagonist gets a lead role in a play she's been training for and cracks up. From time to time there's sexual hints and one or two explicit scenes, just to liven things up a little. Otherwise, this is monumentally dull. Very soft porn with nothing to it. Why did this piece of junk film get any kind of rating?
This is akin to several other films on IMDb. They get ratings above 8 and the only explanations I can think of are that IMDb is the focus of marketing campaigns or that the whole world has taken a step back into the dark ages.