Zhè bù diànyǐng de zuìhòu yī jù táicí fēicháng diǎntí.
The last line of dialogue in this film really drives home the theme.
Tips
usage
Most often used in writing instruction and literary/film criticism. A piece that has 点题 has a clear 'this is the point' moment; one that lacks it feels meandering. 开头点题 = stating the theme up front; 结尾点题 = saving it for the closing line.