Its a real simple game - just think of something that is related to Shannen, and the next poster has to explain how it is related!
They can be as simple or complex as you want (within reason!)
For example:
Simple one - Heathers - Shannen was in this film
More complex - Winona Ryder - was in Heathers with Shannen
Even more complex - Johnny Depp - dated Winona Ryder, who was in Heathers with Shannen
Even more complex! - Orlando Bloom - worked with Johnny Depp in Pirates of the Caribbean, who dated Winona Ryder, who was in Heathers with Shannen!
OK, so I'll begin:
Arnold Schwarzenegger (HINT: there are a few links in this one!)