Already talk of Kung Fu Panda sequel

Kung Fu Panda has made such a big impression on movie-goers after just a few days in the US that there's already talk of a sequel.

Promoting the animated film in Sydney on Tuesday, Jack Black, who voices the lead character Po, said he was confident there would be a follow up.

"My eight ball says signs point to yes," Black told AAP.

Directed by John Stevenson, the film is about an insecure Panda who dreams of martial arts glory.

It also stars Angelina Jolie, Dustin Hoffman, and Lucy Liu.

The film topped the box office over the weekend in the US, taking $US60 million ($A62.7 million) to become the third-highest opening ever for a digital animation behind two Shrek movies.

It beat Adam Sandler's new film You Don't Mess With The Zohan which came in second and Indiana Jones and The Kingdom of the Crystal Skull and Sex and the City.

Black says he'd jump at the chance to be involved if "all the stars are aligned to make it".

"It's easy for me, I just come in and do the acting voice, it's those animators and directors that have to really make the sacrifice," Black said.

There could be up to five more movies if everything goes to plan, according to Dreamworks boss Jeffrey Katzenberg, who's also behind the Shrek movies.

"There is a larger story here of which this is the first chapter," Katzenberg told AAP.

"In the same way Shrek had five chapters from the beginning, this has six."

But Katzenberg was careful not to get too far ahead of himself - especially about a movie which took four years, seven months and 29 days to make.

"Until this succeeds we never know," he said.

"Whether we get to tell those chapters or not isn't something we determine, the movie-goers determine.

"It needs to be a big hit. It needs to be a blockbuster."