"The story for the new 'Indiana Jones' is in the process of taking form," Harrison told France's Le Figaro, as reported by People.

The 67-year-old actor reportedly told the mag that another movie all depends on the script.

"Steven Spielberg, George Lucas and myself are agreed on what the fifth adventure will concern, and George is actively at work," he said. "If the script is good, I'll be very happy to put the costume on again."