In just a few short months, 20th Century Fox will release the long-awaited Deadpool, which star Ryan Reynolds had been trying to get off the ground for several years. The buzz swirling around this superhero movie is already quite high, after the first trailer debuted at San Diego Comic Con this summer. While it isn't known when we'll see the next footage from this comic book adaptation, Ryan Reynolds sent out a new photo on his verified Twitter account, showing the actor in his full Deadpool costume, trick-or-treating with a group of young X-Men mutants on Halloween. Here's what the actor had to say on his Twitter page yesterday.

"Dear Fox, stop changing the timelines. It's confusing the audience. #xmenassemble #happyhalloween."

The actor's joke about X-Men's timeline comes over a year after the studio released X-Men: Days of Future Past. That movie united the younger stars from 2011's X-Men: First Class with their present-day counterparts from the original X-Men trilogy. X-Men: Days of Future Past essentially reset the entire franchise's timeline, creating a whole new "present day" that brought Jean Grey (Famke Janssen) back to life, after she was killed in 2006's X-Men: The Last Stand.

Next year's X-Men: Apocalypse will be set in the early 1980s, closing out the trilogy that started with X-Men: First Class and continued with X-Men: Days of Future Past. It isn't clear where the studio plans on taking the franchise after X-Men: Apocalypse, or how Deadpool and the upcoming Gambit movie will tie into the franchise moving forward. It has been confirmed that Deadpool is a part of the X-Men universe, and there is one character we know about that is crossing over.

While we didn't see much of him in the first trailer, Colossus will be an important part of the Deadpool movie. The character was originally portrayed by Daniel Cudmore in X2: X-Men United, X-Men: The Last Stand and last year's X-Men: Days of Future Past, but in Deadpool, he will be portrayed by Andre Tricoteux. The actor revealed last week that his version of the character will be much closer to the comics than Daniel Cudmore's portrayal.

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Deadpool co-stars Morena Baccarin, Gina Carano, Ed Skrein, T.J. Miller, Brianna Hildebrand, Olesia Shewchuk, Style Dayne, Rachel Sheen and Dan Zachary. Tim Miller makes his directorial debut with Deadpool, working from a script by Rhett Reese and Paul Wernick. While we wait for the next trailer, check out this photo of Ryan Reynolds spending his Halloween with a group of young X-Men mutants.