Kristen Stewart, still looking for a cinematic success outside of “Twilight,” is slated for the lead role in “Snow White and The Huntsman.” It will be her first big budget film following two also-rans, “Welcome to the Rileys” and “The Runaways.”

Palek Patel, who’s producing with Joe Roth, has tweeted that Stewart is in final negotiations to star with Charlize Theron and Viggo Mortensen, according to DeadlineHollywood and other reports.

“KStew is officially playing Snow White and her deal is in final negotiations and will close next week,” Patel wrote.

The confirmation ends weeks of speculation after Deadline reported in January that Stewart, 20, was being eyed for the role of Snow White.

Although she’s one of the most visible and popular actresses in Hollywood, and one of the hottest couples with Robert Pattinson,  it still remains to be seen whether she can carry a picture on her own outside of “Twilight.”

Despite strong casting in Rileys, which also starred James Gandolfini and Oscar winner Melissa Leo, the movie flopped at the box office. It grossed around $300,000 worldwide, according to boxofficemojo.

“Welcome to the Rileys”? Thanks, but no thanks,” wrote Washington Post critic Michael O’Sullivan.

Likewise, “The Runaways,” with “Twilight” castmate Dakota Fanning. The film, about the early days of Joan Jett and her iconic band, also failed to ignite fans.

The movie fared somewhat better with critics than Rileys. But it only grossed $3.5 million with a production budget of $10 million.

Nonetheless, Stewart is considered bank in Hollywood.

She’ll have a lot of help from Oscar winner Theron, but the movie will go head-to-head with another Snow White picture, starring Julia Roberts.

Stewart just finished shooting “On the Road,” based on the Jack Kerouac novel of the same name, about the coming of age of the Beat Generation in the 1950s.

From there, Stewart went right into filming the final “Twilight” installment, “Breaking Dawn, Part I and Part II.”

Production wraps at the end of April, and she will begin shooting “Snow White” in August.

“Snow White and the Huntsman” is scheduled for release in December 2012.