If you're looking for a costume idea, here are some of the best! ... If you want to make your own, the original website has design specifications

Sweet Pea costume worn by Abbie Cornish in Sucker Punch...

Abbie Cornish stars in Sucker Punch as 'Sweet Pea', the reluctant member of an all-girl crew who hatch a plan to escape from a mental institution and the grisly fate that awaits them there.

Original Sweet Pea costume worn by
Abbie Cornish in Sucker Punch
Abbie Cornish Sweet Pea Sucker Punch costume
Sweet Pea Sucker Punch outfit
Abbie Cornish Sweet Pea Sucker Punch costume
Sweet Pea Sucker Punch outfit back
Original Sucker Punch costumes
Along with her onscreen sister 'Rocket' (Jena Malone), the girls band together and enter a fantastical world of dragons, brothels and B-52 bombers, armed with swords, guns and kick-ass martial-arts moves.

Sucker Punch Sweet Pea movie poster
Sucker Punch Sweet Pea poster
This revealing, slightly medieval looking costume was designed by Michael Wilkinson, who has also worked with director Zack Snyder on 300 and Watchmen.

You can check out the superhero costumes from Watchmen here at Hollywood Movie Costumes and props.

Sweet Pea's rifle prop from Sucker Punch on display
Sweet Pea Sucker Punch M4 Rifle prop
In addition to this fantastic costume from the movie, also on display with the exhibit was one of Sweet Pea's rifle props she uses in the film, which is much lighter than a real gun. Below the rifle you can also see Vanessa Hudgens (Blondie's) tomahawk prop.

Sucker Punch movie billboard
Sucker Punch billboard

360° view of Sweet Pea's costume from Sucker Punch
Sweet Pea Sucker Punch movie costumeSweet Pea Sucker Punch film costume
Sweet Pea Sucker Punch costume back
Sweet Pea glove Sucker Punch costumeSucker Punch Sweet Pea costume backSweet Pea Sucker Punch costume
Hopefully these photos will be useful for all those fans who plan to wear this costume for Halloween, or as a reference guide for all those people who want to make their own Cosplay outfit for a future convention or gathering.

Sucker Punch Sweet Pea movie poster
Sweet Pea Sucker Punch poster
You can also check out more Michael Wilkinson designed Sucker Punch costumes in greater detail, such as Babydoll's manga-inspired schoolgirl outfit, Rocket's costume, Amber's skin-tight uniform and Vanessa Hudgens Blondie costume.

Original Sucker Punch costumes on display at ArcLight Pasadena
Sucker Punch film costumesSweet Pea and Blondie Sucker Punch costumes
Sucker Punch film costumes
Original Sucker Punch costumes
All these costumes from the forthcoming movie were photographed on display at ArcLight Pasadena cinema on March 11, 2011 and were installed by Olson Visual.

Go behind-the-scenes of the movie with this official book: Sucker Punch: The Art of the Movie by Zack Snyder