The newest cast member of the "Green Lantern" movie has been announced as Blake Lively, an actress best known as Serena Van Der Woodsen on the CW teen drama "Gossip Girl." She'll be taking on the role of Carol Ferris, the fellow pilot and love interest of Green Lantern Hal Jordan, and occasionally -- in the comics, at least -- the superpowered Star Sapphire.

Lively reportedly beat out a short list that included Jennifer Garner ("Elektra"), Keri Russell ("Felicity"), Eva Green ("Casino Royale") and Diane Kruger ("Inglourious Basterds"), and although we love her in "Gossip Girl" -- we really do -- we can't help but wonder if this is the best casting, especially since Carol Ferris was listed as 27 in the script, while Lively clocks in at only 22 years old.

We're a little concerned that she may be too green to play the Vice President of an airplane manufacturing company, and peer of the 33-year-old Ryan Reynolds as Green Lantern, especially since her resume outside of GG consists primarily of "The Sisterhood of the Traveling Pants" and "The Sisterhood of the Traveling Pants 2."

But hey, we couldn't be wrong! Remember the time Serena got mad at her ex-boyfriend, so she took over the school social hierarchy, convinced the entire student population to shun him, and then dismissed him in the courtyard with a toss of her hair while Santogold played in the background? That was pretty badass, and maybe juuust nuts enough to measure up to the occasionally unstable Carol Ferris.