Last week, it was confirmed that the red band trailer for the highly-anticipated Deadpool will debut on TBS' Conan tonight, Tuesday, August 4. The late-night talk show even changed the rating of their show to TV-MA, so they can show the violent and foul-mouthed R-rated footage on the air. With just hours left until the trailer debuts, Conan O'Brien posted a photo on his Twitter account, which reveals the host pictured next to Ryan Reynolds in his full Deadpool costume.

It isn't known if Ryan Reynolds will spend his entire appearance in the Deadpool costume, or what other antics the Merc With the Mouth will have in store for viewers tonight. Since the talk show's rating was changed to TV-MA, it's possible that both Ryan Reynolds and Conan O'Brien will take full advantage of the adult rating to curse up a storm throughout the night. It also isn't known if the trailer will debut online directly after airing on Conan or not, but we'll bring you the footage as soon as we have it.

Based upon Marvel Comics' most unconventional anti-hero, Deadpool tells the origin story of former Special Forces operative turned mercenary Wade Wilson, who after being subjected to a rogue experiment that leaves him with accelerated healing powers, adopts the alter ego Deadpool. Armed with his new abilities and a dark, twisted sense of humor, Deadpool hunts down the man who nearly destroyed his life. The red band trailer first debuted at Comic-Con last month, during a packed Hall H panel, but now fans will get to see the footage in high-resolution.

The Deadpool supporting cast includes Morena Baccarin as Vanessa Carlyle, a.k.a. Copycat, Gina Carano as Angel Dust, Ed Skrein as Ajax, T.J. Miller as Weasel and Brianna Hildebrand as Negasonic Teenage Warhead. The popular X-Men character Colossus will be played by Andre Tricoteux, instead of Daniel Cudmore, who portrayed the character in last year's X-Men: Days of Future Past. Ryan Reynolds has also expressed interest in reprising his Deadpool role in X-Force, which 20th Century Fox is currently developing.

Tim Miller makes his directorial debut with Deadpool, after working in visual effects on films such as Scott Pilgrim Vs. the World and The Girl with the Dragon Tattoo. The screenplay was written by Rhett Reese and Paul Wernick, based on the beloved comic book character created by Rob Liefeld. Take a look at Conan O'Brien and Ryan Reynolds' photo, and stay tuned for the red band trailer later tonight.

<strong><em>Deadpool</em></strong> Conan