Petr Zelenka (born 21 August 1967 in Prague, Czechoslovakia) is a Czech playwright and director of theatre and film. His films have been recognized at international festivals in Moscow and Rotterdam. In 2008, his film Karamazovi was the Czech Republic's official Oscar submission for Best Foreign Language Film.
In 2005, Zelenka adapted the comedy as a film, released as Wrong Side Up, which won two movie festival awards in 2006 and was nominated for six other awards. His second most notable play is Teremin, inspired by the life of Russian inventor Léon Theremin.
His 2010 election advertisement "Přemluv bábu a dědu" caused controversy as critics believed it was offensive against elder people[1] and "an imperfect copy of Sarah Silverman's stand-up video."[2]