Šárka is a film producer. She has been working in the film industry since 1990. She has worked for production companies focusing on foreign production in the Czech Republic Etamp Film and Etic Film - e.g. Hart's War, The Brothers Grimm, Oliver Twist, Harrison's Flowers, Snow White: A Tale of Terror, The Affair of the Necklace and Hannibal. In 2013, she co-founded the production company Marlene Film Production, which produced the film The Storyteller by Vladimír Michálek and Angel of the Lord 2 by Jiří Strach. In 2020, she launched the film Charlatan, directed by Agnieszka Holland. The film was shortlisted for the world's 15 best foreign language films nominated for an Oscar in 2021. As its producer, she and Kevan van Thompson took over Czech Lion Award for Best Film in 2020 (the film won 3 Czech Lion Awards out of 14 nominations and 2 Czech Film Critics’ Awards out of 5 nominations).