Rachel McAdams At "Sherlock Holmes" pre-production press conference

U.S. actors Robert Downey Jr. and Rachel McAdams and Kelly Reilly, attend a photocall for the film "Sherlock Holmes" in central London October 1, 2008

Robert Downey Jr., who plays the title character in the upcoming feature film Sherlock Holmes,said one reason he was chosen for the role may have been his involvement in action movie "Iron Man", which earned over $570 million in global ticket sales this year, and he promised his Holmes would be the best screen portrayal ever.

“I think me and [director Guy Ritchie] are well-suited to working together,” he said. “The more I look into the books, the more fantastic it becomes. Holmes is such a weirdo,”

British actress Kelly Reilly and costar Mark Strong also present in the event McAdams will play Sherlock’s love interest Irene Adler, Mark Strong will play the part of villain Blackwood, Jude Law (not pictured) will play super sleuth sidekick Dr. Watson and Reilly will be Watson’s love interest Mary.