go to Who Represents (whorepresents.com) and find the celebrities' agent. Write a letter to the agent and ask if they would submit your manuscript or whatever to the actor. (You'll have to pay a subscription fee, but can do it on a monthly basis, I think). I did this with a short story I had. I wrote to Marlee Matlin's agent and he sent it onward to another person who CALLED ME ON THE PHONE and was interested! The project fell through, but it had potential. If it's something that gets to the heart of what this celebrity may want to do or is something intriguing you may get a reply. Best of luck. If you want to interview my daughter, an actress and stand-up comedian, I'm sure she'd positive press. Just email me.