Yes. A Halo movie has been officially announced but it is still in the very early stages.
A Halo movie was announced for a possible 2012 release, but no other official news...
This movie is supposed to be coming out in the year 2012,
There is a Halo movie announced for 2009. The movie is said to be an exact replica...
There is no word on a Halo movie based on the game but there is much speculation.
At this time there are no plans for a Halo movie. !