Australian filmmaker Warwick Ross ("Reckless Kelly," "Young Einstein") is part of a growing trend among directors and producers — he has a day job.

"I'm a winemaker and also run a wine business," says Ross, recently in Tokyo to promote his new film "Red Obsession," a documentary about the Chinese demand for fine Bordeaux wine and the changes this demand is bringing to the global wine market.

"Winemaking is a big part of my heritage," says Ross, whose parents purchased a 16-hectare farm in Australia's coastal Portsea/Sorrento area and, in the late 1950s, devoted themselves to cultivating grapes for winemaking. Ross took over the family business 14 years ago and now divides his time between wines (Pinot Noir and Chardonnay are two of his favorites) and making films.