Her credits include Chasing Liberty (2004), Charmed (2005), Smallville (2005), Cuts (2005–2006), Peaceful Warrior (2006), The Dark Knight (2008), Sharpe (2008), 2012 (2009), Harry's Law (2010–2011), Backstrom (2015), and The Saint (2017).

[1] She played a role in the final season of the WB series Charmed (2005),[1] as innocent Maya Holmes as Piper Halliwell's first new identity.

She appeared in the fourth season of the WB series Smallville (2005),[1] as Dawn Stiles, a girl who wanted desperately to be prom queen.

[2] In 2008, she played Natascha, the prima ballerina and Bruce Wayne date, in Christopher Nolan's The Dark Knight (2008).

[1] Rosen also played Marylin Monique in David E. Kelley's legal drama Harry's Law during the 2010–11 television season.