In Coding example $3\mathrm{.}3$ Movie night, you were asked to play around with two lists of movies and answer questions about the lists.

Reminder:

dad$\_$movies $=["$Die Hard", "Jaws", "Alien", "Princess

Mononoke", "Die Hard", "Alien", "Jurassic World"$]$

kid$\_$movies $=["$Jurassic World", "Princess

Mononoke", "Dragonball Z$",$ "Kung Fu Panda", "How to Train Your Dragon"$]$

In step $2$: You made one list containing one copy of each movie title. What did you utilize to do so$?$

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