Kristen Stewart on set Wednesday, July 17. Credit: AKM-GSI

Back to work! Kristen Stewart filmed scenes for her new movie, Camp X-Ray, in Los Angeles on Wednesday, July 17, and showed off some interesting outfits -- including a full military uniform -- while on the sunny set.

While hanging out between scenes, the 23-year-old actress traded her usual Converse sneakers for white socks and Adidas flip flops, completing her laid-back look with board shorts, a bathing suit and a loose gray tank top. 

In another picture, the former Twilight star donned a full-on military uniform while getting ready to film -- looking the part of an Army soldier with fatigues and a camouflage cap. In the new movie which also stars Tara Holt and Lane Garrison, Stewart plays a soldier named Cole assigned to Guantanamo Bay.

It's been exactly a year and a day since the star was caught cheating on her then-boyfriend Robert Pattinson with her Snow White and the Huntsman director Rupert Sanders on July 17, 2012. Although the Twilight couple stuck it out post-scandal, sources confirmed to Us Weekly that the pair had broken up on May 18, 2013. Insiders explained that they'd been "having problems" and "fighting a lot. 

A main cause of their fights? A source explains that their bitter battles were "about the cheating, about how selfish she always is, about how moody she always is." 

With Pattinson, 27, no longer by her side, Stewart has dived into movie projects. Besides Camp X-Ray, she has another film due in 2014, Sils Maria.