outfits on American military uniforms of the American Civil War era. The 245's outfits were based on the uniforms of the Confederate Army, while the 248's outfits were based on those of the Union Army. The flags of the gangs were also based on those of the Confederacy and the Union. Trost designed the 245 costumes to look clean and the 248 costume to appear gritty. Most of the costumes were made from materials available to the crew; L Dubba E's costumes were made from jumpsuits. The boots worn by JTRO and BTRO were snow expedition boots. Most of the base clothing came from thrift stores, Sarah Trost's fabric storage, and the Trost's childhood clothing. Trost designed the costumes to be distinct from one another. JTRO and BTRO wear very similar costumes, the only noticeable difference being a color inversion. Both costumes had American flag-like emblems on the backs of their jackets, further enforcing the identification of the 248 with the Union. At the end of the film, JTRO takes BTRO's outfit, which required Trost to readjust it for the height difference between Jason Trost and Brandon Barrera, who portray JTRO and BTRO, respectively. As the film progresses, JTRO's color scheme changes from black and blue to military green to reflect his "becoming one with BLT". KCDC's costume design features ducks, referencing a speech in the film in which he notes the lack of ducks in the FP. Stacy and her father are both dressed to be somewhat transsexual, though it is more prominent in her father's character. Whalen told Trost he would wear anything as long as his nipple was exposed at all times. Stacy also wears an I Love New York shirt, with the words New York covered in duct tape and "The FP" written over it with a marker. CC Jam's costume was designed to be as colorful as possible to emulate rave culture. Filming Principal photography took place in Frazier Park, California, with a budget of $45,000. It began in September 2008 and lasted 20 days, most of which were spent on Ron Trost's property. Scenes set in BLT's house were filmed at the Trosts' childhood home, while the look of his basement was designed using the inside of a shipping container. Many set pieces were taken either from items Ron had collected or from other film sets. The Trost brothers split directorial duties between themselves;