Bartosz Gelner: Bartosz Gelner. Actor: Floating Skyscrapers. Bartosz Gelner is a Polish actor who has made a name for himself in both the theater and on screen. He attended the National Academy of Theatre Arts in Krakow, graduating in 2012. His acting career began on the stage of the National Old Theatre in 2008. He later moved to Warsaw to collaborate with the New Theatre. Gelner is best known for his roles...