Bruce Lee's older sister and younger brother have authorised a Chinese company to make a series of biographical films about the late kung fu icon, saying they want to produce a historically accurate account of their brother's life.

Phoebe Lee and Robert Lee appeared at a signing ceremony with J.A. Media in Beijing on Monday, 36 years to the day after Bruce Lee died in Hong Kong at age 32 from swelling of the brain.

It wasn't immediately clear who will play Lee in the film series.

Producer Manfred Wong said the company plans at least three installments, with the first to tackle Lee's teenage years, adding he wanted to focus more on the late actor's personality.

"There will be kung fu... But more importantly, we want to portray the real Bruce Lee. What is the real Bruce Lee like?," Wong said.

"I'm more than 70 years old. I want to promote Bruce Lee's life story," Phoebe Lee said.