Marvel Cinematic Universe: Negotiations for certain Avengers stars in tight spots

Looks like the Marvel Cinematic Universe paid off with their investments with 2012's "The Avengers" capping off a successful Phase One and this year's "Iron Man 3" ushering in "Phase Two", but things aren't quite easy when it comes to hiring and getting the faces behind the suits and tights to return, especially those that make up Earth's Mightiest Heroes in the Big Screen.

Reported by several news and pop culture websites in the past couple of days since Iron Man 3's release in the US, Tony Stark and Iron Man actor Robert Downey Jr. has officially ended his multi-film contract with the release of the armored avenger's third solo flick, meaning Walt Disney Pictures and Marvel Studios will have to renegotiate a deal with the man who literally made the man behind the suit and started the Marvel Cinematic Universe w/ Jon Favreau when the first Iron Man film was released way back in 2008. Right now, the actor is in talks to return for "The Avengers 2" and "The Avengers 3", but he's still not discussing about a return for a fourth Iron Man film.

Apparently, there's a possible explanation why, and it may involve two of his fellow Avengers.

Captain America Update: First look at the Cosmic Cube in the movie!

io9 recently posted an article giving fans first look at the legendary artifact known as the "Cosmic Cube", wielded by actor Hugo Weaving's character Johann Schmidt... aka The Red Skull! Those who know Captain America lore know that those who hold the cube have access to near limitless power, from reshaping reality to something as rudimentary as restoring one's broken mind and psyche. Who knows how this will play into the move Captain America: The First Avenger? We'll find out soon this coming July. For more information, visit the source posts over at i09, Worst Previews, and Slash Film!

Captain America: The First Avenger opens in theaters July 22, 2011!