My one true love, Julie Andrews, has a great recording of this song on her "A Little Bit of Broadway" CD, Columbia CK 44375. It has an interesting introduction, which is also printed in "Rise Up Singing":

VERSE 1: Place: Park. Scene: Dark.
Silv'ry moon is shining through the trees.
Cast: two - me, you
Sound of kisses floating on the breeze
Act One begun: Dialog - "Where would you like to spoon?"
My cue with you: "Underneath the silv'ry moon"

Words are by Edward Madden
Music by Gus Edwards