Harrison Ford is in good shape and ready to perform, George Lucas and Steven Spielberg have finished the script, so hang onto your hat, pistol and bullwhip because the filming of "Indiana Jones" will begin in 2007.

"It's going to be fantastic. It's going to be the best one yet," said Lucas. "I think it's going to be really cool."

Exact film locations have not been decided yet, but Lucas said part of the movie will be shot in Los Angeles.

The fourth film of the "Indiana Jones" saga -- the last came out in 1989 -- will hit theaters in May 2008. It has been in development for more than a decade with several screenwriters taking a crack at the script, but it only recently gained momentum.

Lucas, 62, kept mum about the plot, but said that the latest action flick will be a "character piece" that will include "very interesting mysteries."

At the inaugural Rome Film Festival in October, the 64-year-old Ford said he was excited to team up with Lucas and Spielberg again for the fourth "Indiana Jones" installment. Ford said he was "fit to continue" to play the title role despite his age.

Ford played Indiana Jones in 1981's "Raiders of the Lost Ark," 1984's "Temple of Doom" and 1989's "The Last Crusade."

Lucas praised Ford for breathing life into his character.

"Mostly it's the charm of Harrison that makes it work," he said.

Editor: Donald