'The Wolverine' Teaser Spoils 'X-Men' Cameo -- Or Does It? (VIDEO)

Twentieth Century Fox is putting the tease in teaser this week, with a three-day long rollout planned for the new "The Wolverine" trailer. On Monday, the studio released a Vine clip of the trailer (Vine is a social networking site that allows users to share six-second videos to followers); Tuesday will bring a 20-second glimpse of the new clip, followed by the whole megillah hitting the Internet on Wednesday. That's a lot of "Wolverine," but did Fox reveal too much?

Potential "Wolverine" spoilers ahead. As many fans noted, the six-second Vine clip features a shot of Famke Janssen, best known as the dearly departed Jean Grey from the "X-Men" franchise. Jean and Hugh Jackman's Wolverine had quite an entangled relationship in the original "X-Men" films, but she "died" in "X2" and then, after being reborn as Dark Phoenix in "X-Men: The Last Stand," was killed by Wolverine's claws. Janssen's appearance in "The Wolverine" was rumored as far back as October of 2012, when she was reportedly seen shooting an appearance alongside Jackman.

What remains unclear at the moment is where Janssen's appearance happens on the "X-Men" timeline. "X-Men Origins: Wolverine," the previous Wolverine film, happened before "X-Men"; "The Wolverine," however, takes place after the "X-Men" series of films, meaning Grey could be alive and well or appear in the film via flashback or dream sequence.

Watch the "Wolverine" Vine teaser below. "The Wolverine" is out in theaters on July 26.

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