Warner Brothers is looking for more than 300 extras to appear in a major motion picture that will film in Nogales next month.

Maryellen Aviano, the studio's casting coordinator, said she couldn't disclose the name of the movie but confirmed that it is an action-adventure film that does not involve superheroes.

The studio is holding two casting calls for men and women "of all ethnicities" who are 18 and older, according to press materials.

The first casting call will be at the Tucson Marriott University Park, 880 E. Second St., from 11 a.m. to 4 p.m. on Sept. 14.

The other will be held at the Nogales Best Western Hotel, 750 W. Shell Road in Nogales, from 11 a.m. to 3 p.m. on Sept. 15.

While it's not a family film, Aviano said, the shoot might also require some scenes involving 10 to 20 children.

Parents are encouraged to bring close-up photos of their kids but not the youngsters themselves.

"It is hard enough being on a movie set," Aviano said. "Standing in a casting call line is kind of miserable for kids."

This will be the first casting call for a major motion picture in Southern Arizona since "Transformers: Revenge of the Fallen" and "Away We Go," which both held calls in 2008.

All extra work on the movie will be paid.

Applicants should attend only one audition and need to bring their own pens to fill out applications. Headshots will be taken on-site.

Contact reporter Gerald M. Gay at ggay@azstarnet.com or 807-8430.