"Key scenes" refers to important or significant moments in a movie, play, or book that have a significant impact on the storyline or characters. Full definition
But if you can't wait until then, a couple key scenes from the movie have been officially released online for you to watch over and over again. (slashfilm.com)
We see children singing Jewish songs, and a few key scenes take place inside a Jewish temple. (christiananswers.net)
There are no actual fires involved, and several key scenes are played in near - silence. (metacritic.com)