Artist Jeff Chapman has used the tools at his disposal to imagine a big-budget Supergirl movie in the vein of the recent Man of Steel. The artist has released six movie-poster-style illustrations of the character, featuring Supergirl in a variety of costumes reminiscent of the one worn by Superman in Man of Steel.
According to Chapman, his Girl of Steel series is an ongoing one, and he plans to post more on his DeviantArt page, which you can check out here. As for whether the people at Warner Brothers might follow his lead and produce an actual Supergirl movie, that remains to be seen.
Check out the six Girl of Steel illustrations by Jeff Chapman in the gallery at the top of the page, and enjoy!