Cashback (2006)
Synopsis: "After breaking up with his girlfriend, aspiring artist Ben Willis (Sean Biggerstaff) develops insomnia and takes a night-shift job at a supermarket to pass the hours. He soon discovers that he can freeze time and begins fantasizing about pretty checkout clerk Sharon (Emilia Fox). When he's not dreaming of Sharon -- who may hold the key to resolving his sleeplessness -- Ben roams the aisles disrobing beautiful customers and sketching them."
Synopsis compliments of Netflix