When I saw the stills on the set included with the box set, I was shocked to see Welles hadn't had his huge weight gain yet; in fact, he looked very good still. Which got me to thinking that if he had really wanted to capitalize on Harry Lime, a role he did with no makeup, in Arkadin, then he should have also gone without makeup in Arkadin. This might have elevated his performance, as I often feel he's just buried under all that hair and nose, etc., and at the least made it more accessible. In fact, he could have started out with the costume at the party, then removed it later. At least one commentator has observed that since the hairnet of the wig is clearly visible, it's possible that Welles wanted the audience to realize Arkadin was always in disguise. At any rate, as has also been observed, there's really no sympathetic characters in the whole movie, except maybe Paxinou's, and this makes it tough on the audience to identify. A Welles as Arkadin without makeup might have allowed the audience the guilty pleasure of identifying with a charming scoundrel, as they did so easily with Lime.