The fun in this movie is watching two clever actors portray two clever opponents matching wits in the forum of a television interview. As depicted by screenwriter Peter Morgan, who adapted his stage play to film, both Richard Nixon and David Frost had much at stake when they sat down together for 20+ hours of televised interviews. Where truth ends and artistic license begins isn’t really the point. The sharp writing and the double-duel between Nixon/Frost and Frank Langella/Michael Sheen is worth seeing, even if the rest of the film is well done but uninspired.
I give it 3.5 out of 5 pairs of Italian loafers