Trivia / Dual

• Acting for Two: Karen Gillan plays both Sarah and Sarah's Double.
• Hollywood Pudgy: Sarah lives an unhealthy lifestyle and comments on how her double doesn't have her "love handles," yet Karen Gillan herself obviously has the lanky physique of a model. Later, Sarah's Double pokes at her belly while hunching over, prompting her boyfriend to comment that she's gaining weight, though she still looks as lean as ever.