Flowerman is a film advertised in Grand Theft Auto IV. A billboard can be found in Star Junction. The billboard is a spoof of Zoolander's poster, with two men forming a letter "F" in the same way the Zoolander poster shows a man forming the letter "Z". It cannot be watched by the player.
On The Intelligent Agenda, host Mike Riley says actor Brandan Roberts is the star of Flowerman, however his name does not appear on the billboard.