Voir Sadisflix. Tankový prapor (Tank Battalion) is a Czech comedy film. It was released in 1991. The movie represented the first privately produced movie in Czech Republic. It was a blockbuster. Today, the movie is perceived as a classic, it is the most acclaimed movie of his creator, director Vit Olmer, it starred Lukáš Vaculík, a popular star of youth movies in the main role, as well as the by-then well received comedian Miroslav Donutil.