"fscommand("fullscreen","true");" error AS3

Hey guys,
Is the fullscreen function the same for AS3 as it was AS2? Currently I have “fscommand(“fullscreen”,“true”);” in the first frame of my movie and it launches my projector into fullscreen mode, which is what I want. however, it also launches any subsequent movie I load from an external file using the getURL command into full screen as well. Any ideas?
Thanks again