Rebel Wilson looked slimmer than ever as she rocked a cheerleader uniform on the set of her new movie Senior Year.The Australian actress – who appears to have now lost more than her goal of 30kg – shared a number of clips of herself in character on Instagram on Thursday.MORE: Rebel Wilson surprises with back-to-school photo Rebel stood in front of co-star Chris Parnell as she pulled a number of cheerleader poses, including the famous 'spirit fingers' from the 2001 film Bring It On.WATCH: Rebel