The Hollywood Reporter announced that Jon Hamm, star of *HBO's Mad Men, has signed for a role in the update of the sci-fi classic. Hamm plays Don Draper on the series about the heyday of the advertising business. Hamm will join Keanu Reeves as the alien Klaatu, and Jennifer Connolly will play a research scientist. According to THR, Hamm will play "Dr. Granier, a NASA official who recruits Helen (Connelly) for the scientific team investigating an alien's arrival on Earth". For those of you out there who aren't familiar with the 1951 classic, it centers on an alien and his giant robot friend who land on earth to chastise man about their violent ways. They bring a simple message to earthlings, "Live in peace or be destroyed". Of course, we don't listen and it all goes downhill from there. Variety had reported that the film was going to get a little modernizing in both the story and the FX department, saying, "The 1951 film's premise, a response to the rise of the Cold War after WWII, is being updated, and the film will use advances in visual effects."

News of the remake first surfaced back in February, and the jury is still out on whether Keanu Reeves is the right choice as the harbinger of earthly doom. Scott had brought us the news back in April that Scott Derrikson had been hired for the remake and that Last Castle scribe David Scarpa is in charge of the script. The production is expected to be an expensive affair and locations have already been scouted in Vancouver for the lengthy shoot. Hamm is currently filming Boy in The Box with Josh Lucas while Mad Men is on break. The Day the Earth Stood Still is set for release on December 12th, 2008.

*Correction: Mad Men airs on AMC.