I suppose in the spirit of equal time, I should give my answers...
1) CD: I'd burn a CD with Rachmaninov's 1st, 2nd,
and 3rd Piano COncertos, and his Rhapsody on a Theme from Paganini.
2) Movie: "Lawrence of Arabia"
3) Actress: The actress that plays Diana on "Angela".
Yet it's a strange desert island that would have a CD player and something to play the movie on...
I'd guess I'd bring a book in case there was no electricity: "The Decline and Fall of the Roman Empire".