No, the facts are:
There were plans for a halo movie. It was supposed to be the 'BACK STORY' to the Halo plot seen in the games.
The copyright rights were fought over, a script was written but the but the companie(s) could not afford the funding.
It is very unlikely that the movie will ever be made.
Although that Casio Entertainment will most probably make the TV Anime Halo - Television Series, and then that may be made into a DVD eg. Pokemon The Movie.
But there will be like a 1% that they will make a Real-Life based Halo Movie