how can I give a button actions for a movie with tell target to go back from where it is and play backwards. (the idea is that on roll out it does not skip to the end frame of the over state but stops where it is and goes back slowly)

i.e.
on (rollOver) {
tellTarget ("my movie") {
gotoAndPlay ("over");
}
}
on (rollOut) {
tellTarget ("my movie") {
prevFrame (????);(and plays backwards until it reaches frame 1 and stops there)
}
}



Help would be appreciated