Films that grant the ambition and then present the invoice — greatness reached, and the specific thing surrendered to reach it.
A film about ambition that ends in failure is a morality tale, and morality tales are easy. These three are harder, because in each of them the character gets what they wanted.
What separates them is where the film puts the bill. Whiplash hands it to the audience and walks out of the room. La La Land itemises it in a five-minute fantasy of the life that was not chosen. The Dark Knight hides it inside a lie that two men agree to maintain for the city's benefit.
None of the three tells you whether the price was worth paying. That refusal is the axis.
Whiplash2014 · Damien ChazelleFletcher's quiet "good job" is the most frightening line in the film: Andrew gets the greatness he asked for, and the closing Caravan will not say whether it was earned or extorted.
La La Land2016 · Damien Chazelle★ 4.5 · 1Mia and Sebastian each get the career they wanted and pay for it with the other; the closing sequence prices the road not taken without pretending it was ever available.
The Dark Knight2008 · Christopher Nolan★ 4.0 · 1Harvey Dent wants to be the city's white knight without touching its rot, and the tragedy is that he half-succeeds — his ambition outlives him as a lie Gordon and Batman agree to keep telling.
Citizen Kane1941 · Orson WellesThe film opens with the man already dead and spends two hours asking what he traded for the empire; the answer is a word nobody in the room hears the meaning of.
Goodfellas1990 · Martin ScorseseHenry gets the life he wanted since he was thirteen, and the last act prices it: the schnooks he pitied end up holding the one thing he cannot buy back.
There Will Be Blood2007 · Paul Thomas AndersonPlainview wins every negotiation in the picture and finishes it alone in a private bowling alley — the ambition is granted in full, which is the horror.