Claim: Gemma Arterton was unable to perform in the film Clash of the Titans.
Evidence: She is known for her roles in the fantasy films Clash of the Titans -LRB- 2010 -RRB- , Prince of Persia : The Sands of Time -LRB- 2010 -RRB- , Byzantium -LRB- 2013 -RRB- and as the character Gretel in Hansel and Gretel : Witch Hunters -LRB- 2013 -RRB-.