Their Horatio Alger tone is the joke, but it's not a joke that director Milos Forman seems to be in on.
 Their Horatio Alger tone is spot on, but Milos Forman hates it.
mnli hypothesis:  Their Horatio Alger tone is spot on, but Milos Forman hates it. premise: Their Horatio Alger tone is the joke, but it's not a joke that director Milos Forman seems to be in on.