In 2006, Woo set up film-production company Mythopolis Pictures with Singapore-based American film director Tony Kern. They co-produced a short film called The Mitre Spell which premiered at the 2007 Singapore International Film Festival.

Her another film A Month of Hungry Ghost made it's debut in local cinemas in 2008 and was nominated for Best Film at the inaugural Singapore Film Awards at the 22nd Singapore International Film Festival.