Meryl Streep’s performance in ‘Doubt’ is so layered and played out in full scenes ala the period in American filmmaking that the film happens to be set in. Rarities on both counts. Lucky this year that there is another performance that is just as compelling with some of the same qualities- Frank Langella’s scathingly human portrait of Richard Nixon in Ron Howard’s film version of ‘Frost/Nixon.’ Langella, who created the role on stage last year, reprises it with Shakespearean tragicomedia, intact on film. With any luck these two actors will consider teaming up in, say, a much needed new American version of ‘MacBeth.’