This video has a cute song for younger elementary students (Pre K and Kindergarten.) It is great for feelings recognition.
Movie clips from Disney's Inside Out are great for discussing feelings. I especially like this one for observing how Riley's emotions change throughout the day. I have also used it to discuss The Zones of Regulation with students.
This clip is great to discuss grief. Riley feels sad when she thinks of an old memory. Students can then discuss memories of a lost loved one or pet.