During the UK opening of Indiana Jones and the Kingdom of the Crystal Skull, director Steven Spielberg had this to say about the possibility of more Indiana Jones films.

"Only if you want more. That's why we made this Indiana Jones. We'll certainly have our ear to the ground to hear what happens. That'll decide were we go from here."
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More Indiana Jones will have to wait, though. The director's next project is producing and directing a set of Tintin films, which he'll have help from director Peter Jackson.

"We are going to make three Tintin movies back-to-back. I'll direct the first one, Peter will direct the second one. We'll probably co-direct the third one."