In film, she has played Xandrie in Wasted on the Young (2010), Ladybird in Vampire (2011), Heather / Sharon in Silent Hill: Revelation (2012), Catherine in The Great Gatsby (2013), Hazel in To the Stars (2019), and Carey in The Swearing Jar (2022).

She guest-starred in a 2006 episode of Blue Water High as Juliet, and, in 2007, starred in the children's series Pirate Islands: The Lost Treasure of Fiji, as Alison.

Written and directed by Ben C. Lucas, the film tells the story of a high school love triangle that leads to a party ending in gun violence.

[10] She guest-starred on the Fox crime drama, Lie To Me, and starred as a sociopathic prostitute in the film Generation Um...

[11] As of January 2010[update], Clemens was in negotiations to join the cast of Fury Road, the fourth in the Mad Max film series by George Miller.

[18] The following year, she appeared in The Great Gatsby (2013), based on F. Scott Fitzgerald's novel of the same name, playing Catherine, the sister of Myrtle Wilson.