It appears that Arnold Schwarzenegger is going non-stop to revive his film career after taking a brief hiatus to play governor of California.  He'll be seen later this year in The Expendables 2, he shot The Last Stand last fall for a January 18, 2013 release, he's re-teamed with Sylvester Stallone for the prison break flick The Tomb, and now the action star says his next film will be The Unknown Soldier.  Act of Valor directors Mike McCoy and Scott Waugh are set to helm the feature, which was previously titled "Black Sands" (in December we reported that the movie had been re-titled to "Black Sunday", but Schwarzenegger fansite The Arnold Fans tells us that the title has always been Black Sands until now).  According to Schwarzenegger, filming on The Unknown Soldier is set to begin in June.Hit the jump for more.In addition to revealing that the prison in The Tomb is on a ship in the middle of the ocean, here's what Schwarzenegger told The Arnold Fans about The Unknown Soldier:

"Then we're going to do The Unknown Soldier which is going to be with the Bandito Brothers that did Act of Valor, the number one movie right now and is getting such notoriety because they shot if for 4 million dollars and it looks like 100 million dollar movie because they got military and shot real action stuff which makes the movie so big and very successful, great story and everything. Those directors are doing Unknown Soldier, we start shooting sometime in June. Hopefully by that time my shoulder will be OK so I can do the stunts, but I'm looking forward to all that."

The title presumably refers to The Tomb of the Unknown Soldier at Arlington Cemetery.  The tomb represents all the unidentifiable remains of soldiers lost in combat.  All we know about Black Sands is that Schwarzenegger said his character was "a kind of angel," and that he couldn't say anything more than that.  The Arnold Fans added that the movie was a cross between Constantine and Commando.

Schwarzenegger didn't confirm that Black Sands' title had been changed to The Unknown Soldier, so it's possible that Waugh and McCoy have signed on to direct another and entirely separate movie for the action star, but that seems unlikely.