It's funny how smart arses started coming on here saying "no, the film actually has dialogue". For all intents and purposes, the movie has no beep dialogue.

You should check out "Le Dernier Combat (The Last Battle)" also if you liked this. It is a post-apocalyptic style movie where people can no longer speak due to some event in the past. Since society has collapsed mankind has devolved back to its more animal state again to a degree. The lack of dialog in no way detracts from making the characters highly likable and three-dimensional. No subtitles etc.
I also loved this movie and thought it was very unique.
Cheers!

The Thief is a 1952 film noir starring Ray Milland with a plot about a nuclear physicist working in Washington DC who also spies for some unnamed foreign country. It is told entirely with out dialogue.
Doug

Cracks me up. The movie I just saw before this was "Network," where one of the top threads was "No Soundtrack." Worked well in both cases, I thought. I read a little about this movie before seeing it, and was totally expecting subtitles. Pleasantly surprised that the movie had none and needed none.

see black and white "Le Dernier combat" by Luc Besson (1983).
it has no dialogues too.
i gave to it 9/10

The word for fire sounds something like 'artro'
To me it sounded more like "HARRRRRRRRRRRRrrrrr-truh"
Also, Gaw said "DUN-deroh, DUN-deroh" several times when he got excited about food. That was one of the best lines in the movie

Actually, I believe "Dialogue" simply means to communicate ideas or thoughts and this can be with body language, sign language and even imagery Imagery involves one or more of your five senses (hearing, taste, touch, smell, sight).. If you were able to understand what was happening in this movie, then they utilized a dialogue with each other and the audience
Bill Steward

Unfortunately dialog = Speaking.

Actually, you do not need speech to talk. Mutes can talk to each other by use of hands signs. Bees communicate with each other by dancing: http://www.livescience.com/animals/050527_bee_dance.html

You cannot consider body language dialogue, it has to come out FROM SPEECH to be considered dialogue.

Saenos is absolutely right, there is dialogue. The word for fire sounds something like 'artro'. (Also my droogs, Anthony Burgess wrote a teenage/slang/'language' for his novel A Clockwork Orange.)
Dialogue was also contained in the gestures and body language of the humans as developed by british zoologist/ethologist Desmond Morris.

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I read in this thread that they were no dialogs in this movie. This is untrue. Everything that you hear as rough grunting was actually written by no else than Anthony Burgess, the writer of A Clockwork Orange.
Anthony Burgess is a linguist and actually manage to re create and write a dialog for the actors to use. If you pay attention, you can hear the name "Naoh" being used before the three men are sent on their quest. The language spoken by the tribe of the woman is based on old Inuit language, if I remember well.
Making a comparison with the movie "the Bear" could only be limited to that it has been directed by the same artist."Quest for fire" has, without a doubt, a form of dialog but is not spoken by anybody at this time of history

it was certainly different, a movie without any dialogue
but it was very good indeed the fact that you have to keepm attention to realy know whats going on
I give it an 8 out of 10
I Worship The Goddess Amber Tamblyn

And that is the real challenge for an actor!

watch this:
http://imdb.com/board/10162023/
if you can. no dialogues (no cavemen 8), GREAT movie.

9 is very dialogue driven

The movie 9 (directed by Shane Acker and produced by Tim Burton) is also said to contain no dialogue.

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Hadaka no Shima also has no dialog, I hear it's amazing, but it's rare.
my ymdb site
http://www.ymdb.com/mehsuggeth/l35858_ukuk.html

In the commentary, director Jean-Jacques Annaud did mention ONE MILLION YEARS B.C. once and another Hammer movie PREHISTORIC WOMEN (mostly the latter though) and said he did not want to go to that direction, where basically the cave girls looked like beauty queens.

Being a teenager when One Million Years B.C. was released, I believe it was more a vehicle for Raquel Welch's killer body. Even at that age, I realize that prehistoric life must have been a lot more brutal than portrayed in the film, but it was sure nice Raquel prancing around in an animal skin, especially to a youth with growing sexual curiosity.
Quest for Fire aims to be more authentic, where feminine attractiveness was more about female musk than shaved legs and plucked eyebrows.
I'm sure the filmmakers of One Million Years B.C. wrestled with where to draw the lines between authenticity and exploiting the Sixties filmgoers. This was the era referred to as the "sexual revolution," where scantily-clad babes and bouncy "Bond Girls" were the ticket for greater box-office success.

ONE MILLION YEARS B.C. with Raquel Welch only had that beginning narration to setup the story, otherwise everything else is with that caveman dialog.

Looks like it has been made a lot of movies without any language, even if most of them are short movies:
http://www.imdb.com/Sections/Languages/None/