Anything about all the Harry Potter films. Also anything to do with Alan Rickman, Tom Felton and Jason Isaacs.
I'm on the admin team of Hogwarts Academy and also own two newsgroups (I have eight in total) for Alan Rickman and 'Malfoys_and_More'
What I'm guessing you really want is this..I have contacts and work with actors and crew from many shows. I also own the seaQuest Fan Club which has been going now for 10 years.. it's newsgroup has been going 6. Many are now friends and help with running of newsgroups. Check out my newsgroups http://groups.yahoo.com/group/Alan_Rickman_No1 and http://groups.yahoo.com/group/Malfoys_and_More
There are many levels to these topics. Obviously the ones of Harry Potter are more or less self explanatory, but with Alan Rickman, Jason Isaacs and Tom Felton it's a little more complex as they've all done varied roles outside Hogwarts.
Did you know that Jason's just bought a new kitchen with a steam oven and doesn't know what to do with it. After asking the professional chefs, even they don't know other than making bread. (Source - Saturday Kitchen) As for Tom - did you know that he once kicked Jodie Foster in the face during the filming of Anna and the King.