On that thought, I let my head drop and the dark curtain fall.

She glanced behind her and saw a curtain fall at the window.

I need to stay to see the curtain fall.

Its action is continuous, punctuated only by the curtain fall at the end of each act.

He was not able to return to his home country until after the fall of the Iron Curtain.

Since the fall of the Iron Curtain many people have left the town.

After the fall of the Iron Curtain, however, the situation changed.

He waited till a stranger in the street had passed the window, to let the curtain fall into its place again.

But he has not let the curtain fall on this season without a rousing finale.

I'm happy the audience did not have to experience an affront by having the curtain fall.