If you are going to speak to him I have two questions in order of priority, if okay of course, one being:
He once said that he would have said David Fincher could do anything with his likeness in Alien³ if he could be in one of his later films.
What David Fincher film would Michael Biehn like to be in then?
The other, how was working on the Alien³ audio drama?
Again only if you feel so inclined to.