In response to the letter alleging that Fox's on-set behavior is unpleasant and contrasts her public persona, Bay stated he does not condone the letter or Fox's "outlandish quotes", but "her crazy quips are part of her crazy charm", and that they still work well together.Di Paolo concluded that Fox's criticism of the media sexually objectifying girls and women was in stark contrast to her sex symbol status and that this, "her defiance of director Michael Bay and frequent outspoken comments" stifled her career.In the next several years she guest-starred on What I Like About You and Two and a Half Men, as well as being an uncredited extra in Bad Boys II (2003).In 2004, she made her film debut in Confessions of a Teenage Drama Queen co-starring opposite Lindsay Lohan, playing the supporting role of Carla Santini, a rival of Lola (Lohan).In 2012, Fox appeared briefly in Sacha Baron Cohen's comedy The Dictator and had a featured role in Judd Apatow's comedy This Is 40.
Fox also said of high school that she was never popular and that "everyone hated me, and I was a total outcast, my friends were always guys, I have a very aggressive personality, and girls didn’t like me for that. In the same interview, she mentions that she hated school and has "never been a big believer in formal education" and that "the education I was getting seemed irrelevant. At 15, Fox made her acting debut in the 2001 film Holiday in the Sun, as spoiled heiress Brianna Wallace and rival of Alex Stewart (Ashley Olsen), which was released direct-to-DVD on November 20, 2001.
Fox was nominated for an MTV Movie Award in the category of "Breakthrough Performance", and was also nominated for three Teen Choice Awards.
reprising her role as Mikaela in Transformers: Revenge of the Fallen.
Lynn Hirschbergnov of The New York Times opined that "the Jolie comparison would probably have been made by the media eventually, but Fox sped up the process" by "linking herself to Jolie" and that she created an "entertaining copy" by telling "tales of darkness and lust." It also positioned her as a potential role model, and later led to her being typecast.