Where screenwriters learn the form and logline their screen ideas.
When a starry-eyed wallflower lands the coveted role in theatre production of the Heroines of Greek Tragedy, she must step out of the chorus line and out of her shell and into the spotlight
One other thought/question:? what are the stakes?? Why must she stop being a wallflower?
What's so wrong with being a wallflower?? Not everyone can be the life of the party, the center of attention, the flaming extrovert.? Not everyone wants to be.
And there is as much to be said against being a narcissist who craves to? be in the spotlight 24/7 as the wallflower who cravenly hugs the wall 24/7.
What is the tangible/visible penalty or loss if she fails to perform in the spotlight?? ?What is the tangible/visible reward or payoff if she succeeds?
And as Art House flicks usually have a more sensible take on human nature, sometimes a brutally? honest pov on life, how realistic is it to be believe that a couple of hours in the spotlight can cure? the "character flaw" of being a wallflower?
Your idea seems like it could be fun, perhaps the lead character is the costume manager, she is too shy to get on stage but secretly wants to be a star.
She knows all the lines by heart. So when the lead can't perform she is the only one who can step in at this late a moment and save the day.
?
Perhaps the lead even breaks her leg 5 minutes before the show must go on lol, now no one knows what to do.
That's when her friend says, "What about Emily, she knows all the lines"
Next thing she knows she is being put into costume and shoved out onto the stage.
It's her moment, what will she do? will she whither under the heat of the white-hot spotlight or will she shine?
First of all, this logline attempt is a step in the right direction. The story is by far more clear.
To add to what dpg said, how about something like this: (btw, yours will probably be different, I am just giving an example)
"When the lead actress breaks her leg, a starry-eyed wallflower must come off the wall, get over her stage fright and perform the leading role of the seductress, Cleopatra."