The actress ditched her honey-blonde hair ... Rachel McAdams but Says 'I Don't Think It's a Good Movie' In the film, which also stars Owen Wilson and Vince Vaughn, McAdams has a rich brown shade ...
Even when Rachel McAdams isn't frequenting red carpets ... And interestingly, McAdams had brown hair in 2004 as well, making me wonder if she has a calendar reminder set for every 10 years ...