Fscommand for fullscreen?

I’m trying to create a movie that will automatically play in fullscreen mode (in standalone Flash Player, not in an HTML document). I came across this command, which it seemed should work, simply placed in frame 1:

fscommand("fullscreen", true);

But with ActionScript 3, I get this compile error:
1067: Implicit coercion of a value of type Boolean to an unrelated type String.

And with ActionScript 2, there’s no error, but it doesn’t work; the movie plays as normal, not going to fullscreen.

What is the proper way to accomplish this?