We now know who Team Ferrell/Cohen will eventually have to face off against at the box office: Iron Man.

Just last week, we told you that former Talledega Nights co-stars Will Ferrell and Sacha Baron Cohen would be reuniting for film about Sherlock Holmes. Unfortunately, their Columbia Pictures comedy did not have a director or release date attached to it yet. It also faced comparison to a similar project being formed at another studio.

Now Warner Bros. has announced that Robert Downey Jr. will be donning the detective’s cap for their take on the Sir Arthur Conan Doyle novels. While there will most likely be tone differences between the two movies, Downey’s version will reportedly be “less stuffy” than what we have seen in the past.

The Guy Ritchie film will start production in October (before the Columbia version) in hopes of a October 2009 opening.