Complex sentence: It was supposed to release in 2008 but was delayed, it was then set for a early 2010 release but in January 2010 it was further delayed because parts of the film were leaked on YouTube while still undergoing post-production work.
Split into simpler sentences: It was supposed to release in 2008 but was delayed, it was then set for a early 2010 release but was further delayed because parts of the movie were leaked. In January 2010, the film was leaked on YouTube while still undergoing post-production work.