Okay so if you know how to do this thats awesome. If you dont then I'll give you an example.
First, you start out with an actor or actress. Lets say Orlando Bloom. Okay now heres what you do:

Orlando Bloom was in Black Hawk Down with
Josh Hartnett who was in Pearl Harbor with
Jennifer Garner.

Okay after you have finished name another actor or actress for someone else to do it. So have fun and I will start you off.


Kate Hudson.

kate hudson was in Alex and Emma with Luke Wilson who was in Legally Blonde with Victor Garber.

angelina jolie

was in Hackers with someone i can't remember the name of who looked like David Anders (i know it's a rubbish link but it's the best i could think of)

Hugh Grant

nobody's put a link so i'll put one:
hugh grant was in love actually with keira knightly, who was in pirates of the Caribbean with orlando bloom, who was legolas in lord of the rings with sean bean (sam), who was drew barrymore's brother in 50 first dates, drew barrymore was in never been kissed with - MV.

Orlando bloom (you can't use the link i just used)