How many movies have Jaroslav Němeček and Ota Jirák collaborated on?

They have worked on 2 movies together! Their first movie together was Čtyřlístek ve službách krále (2013) while their highest rated movie together was Velké dobrodružství Čtyřlístku (2019). They have not worked together since Velké dobrodružství Čtyřlístku (2019).