WHILE THE PROJECT IN VERACRUZ CONCERN ANOTHER PROJECT OF HIS, TO MAKE A MOVIE ABOUT A LEGENDARY LATINOS FIGURE. KIND OF WILLIAM WALLACVE IN SPANISH.

NONE OF THE PROJECT ARE SURE THO, BECAUSE SO MUCH BAD THINGS HAPPENED IN BETWEEN IN HIS PRIVATE LIFE.
concerning the governor of veracruz's statment, its good to keep in mind that he needs money from toursim and he needs money and strong arguments to get it and to get authorisations to keep on with his own project of moving all prisoners from Veracruz center, where they are stationed at the moment, to a new prison he had builded for them, and to which he had already moved them to.
The alone noticeable thing that could link his political project to Mel Gibson's movie, is the fact that the actual old jail is to be destroyed, and part already is, while a specific aisle of the jail has to be kept intact for the filming of Mel Gisbon's movie and until Mel Gibson is done with it.

So take his statement as a political move, with dobble targetting: his political opponent, and to invite Mel Gibson to do come there and film that movie.
Mel Gibson had to drop 2 other movies that he had started since 2007 and was filming, one of them with Richard Donner as director, for "SAM AND GEORGE", simply because of lack of time and hightened pressure in his personal life.

The alone bad thing about the drowner is that its in Australia and Mel wasnt able to leave CA, first he couldnt cause of the DUI thing, then cause of his son, but he might do it who knows?

you cant say which one is the one, since Mel Gibson dont know it himself! LOL
dont forget its a governor and politician that started the fuz about Veracruz, and not Mel Gibson.

Alan Nierob was asked and told the press that nothing in that project was finalised.. meaning its still up in the air and might never be.
For the dates you found at IMDB and else, they are all depending on people posting correction and changes, so you cant know so for sure. They also post wrong informations.
and it takes a long long time before they remove it and for things to get updated.
Like they had stil Sam and George in production, even the movie had been droped for over 6 months..