A wallflower decides to come off the wall and make the world her stage.

A logline is very specific. It is a very short description of the plot. Inciting incident, a lead character, goal, and conflict.

What you have written is more of a blurb... "In space, no one can hear you scream"

Two completely different things.

A blurb is used to tease an audience into watching your movie. (After the movie is made and about to come to theaters)

A logline is used to sell your script. (Before your script has even been seen by a studio)

However, I would definitely keep some of this in the logline.

When (This thing happens to the lead character) a wallflower is forced to come off the wall if she's too (Accomplish this goal)

As dpg has pointed out, this is more of a tagline than a logline. Check out the formula page for help with formatting and give us more information about who this character is, what pushes her to go on this journey and what she hopes to achieve.

Specifics would be good too. Is she a singer? Actor? Musician? Where does she start? What visual goal is she actually trying to achieve?

Films like this usually have a mentor character (A Star is Born, Eddie the Eagle, Cool Runnings, etc etc) so if that's your plan then maybe consider working that into the logline too.

You've put this into the "adventure" genre. I would argue that's probably more of a drama but without more information I couldn't say for sure. Critic?Don D'Ammassa?defines the genre as follows: An event or series of events that happens outside the course of the protagonist's ordinary life, usually accompanied by danger, often by physical action. Something to keep in mind going forward.?

There seems to be an interesting story here, but I'm not sure what that story is yet.? Alas, this more suited for a tagline than a logline.? What's the difference between the two?? A tagline is targeted to movie viewers.? A logline is targeted to movie makers.? ? And movie makers are looking for specific information in a logline.

What are movie makers looking for?? A specifically defined protagonist who is motivated by an inciting incident to pursue a specific objective goal.? What is the inciting incident that makes her "decide to come off the wall"?? And how does "make the world her stage" translated into a specific objective goal?

Check out the guidelines under "Our formula" for the elements that need to go into an industry acceptable logline.