Avengers: Infinity War Reflection

Infinity War explores the theme of sacrifice by showing it as an emotion through the different characters. Like Thor, it was losing Loki in the begging, Loki sacrificed himself to try to stop Thanos because he knew Thanos was going to get more powerful, but in a result Thor was mentally hurt throughout the movie. Then when it came to Wanda and Vision they had to sacrifice their "retired" life by helping The Avengers fight of Thanos and his army. Nearing an hour, Quil had to "sacrifice" Gamora because she knew where the location of the last stone was, while although he didn't kill her, he definitely said his goodbyes and pulled the trigger, sacrificing his love life. Near the ending of the clip Rocket had to sacrifice his team with the Guardians to go with Thor to get his "Thanos killing Kind" weapon.

It puts a depressing mood on the whole movie. To show that everyone is splitting apart over one person that has the power of the Universe in his palm. How they're scared to fight him. It effects all the characters differently, but it also encourages them to stop Thanos as much as possible so it won't happen to half of the universe.