Inside Out is a movie about a girl growing up (well going through the age of eleven) an moving to a new home in
San Francisco. When she moves there her live starts falling apart. She despises her new home,her new school, her new life. The cause of all of this is joy and sadness (her emotion people)
have accidentally left headquarters and gotten lost in long term memory. So with joy and sadness out of the headquarters it leaves anger, disgust and fear to lead Riley through her life.
These three didn't make a very good decision. I'm not going to say what it is because it is a big part of the movie and I don't want to ruin the ending. On joy and sadness's journey joy has realized that sadness is a very important emotion. Joy used to think that sadness just ruined everything, and made people sad. But when joy realized that sadness is a mandatory emotion she has a different prespected in Riley's (the person joy and the other emotions are "in-charge of") life.