X-Men Origins: Wolverine movie

Hugh Jackman as Logan / Wolverine: The mutant and future X-Man.
Liev Schreiber as Victor Creed / Sabretooth: Schreiber picks up the role played by Tyler Mane in the first X-Men film.
Danny Huston as William Stryker: Brian Cox, who played Stryker in X-Men 2 was reportedly keen to reprise his role, whilst Schreiber was originally reported to be in negotiations for the part, the role eventually went to Huston.
Lynn Collins as Kayla Silver Fox: the role was originally offered to Michelle Monaghan, however she had turned it down due scheduling conflicts.
Daniel Henney as David North / Agent Zero: A member of the Weapon X program and an expert tracker with lethal marksman skills.
Will.i.am as John Wraith / Kestrel: A teleporting mutant who becomes a Weapon X test subject.
Taylor Kitsch as Remy LeBeau / Gambit: A Cajun thief who has the ability to charge any object he touches with kinetic energy, forcing it to explode. Josh Holloway from Lost was rumored to have been linked to X-Men 3 in the role of Gambit, although the Gambit character was written out of the final script.
Dominic Monaghan as Barnell: Apparently the Barnell in the film is a lot different to the Barnell/Beak character that appears in the comics. This version of Barnell is said to have the ability to manipulate energy and electricity.
Ryan Reynolds as Wade Wilson / Deadpool: A wisecracking "Merc with a Mouth", most likely insane mercenary who also has the healing factor of Wolverine.
"Merc with a Mouth"
Kevin Durand as Frederick J. Dukes / The Blob: "An obese mutant with an indestructible layer of fat."

If you don't want to know anything about the rumored plot for the X-Men Origins: Wolverine movie, then I suggest you skip this section.

Much of X-Men Origins: Wolverine is said to be set some 17 years prior to the first X-Men film. It is said to follow the transformation story of Logan into the Wolverine.

Photos that have emerged also point to numerous flash backs, that cover the early years of Logan, as well as the first time his mutant powers manifest. These screen shots (see below) look strikingly similar to some of the panels taken from the Wolverine Origins series.

The film is also rumored to include a closing battle between Wolverine and Weapon XI.

Here's an image that was posted on the web following the recent screening of the Wolverine teaser trailer at this years Comic-Con. As you can see, the bone claws come out!

You can find this image and others from the Wolverine Teaser Trailer here.

Another image leaked on the web from the Comic-Con teaser trailer screening, this time showing Wolverine and Sabretooth squaring up against some gun totting soldiers.

You can find this image and others from the Wolverine Teaser Trailer here.