OP, may I personally recommend the following. These are all considered reference-grade BD releases and are a must for experiencing the best your TV can offer. I can vouch for them personally; the PQ will change your life.
Baraka
Pan's Labyrinth
Pacific Rim
Mad Max: Fury Road (standard as well as black & chrome)
Rogue One
Blackhawk Down
The Dark Knight
The Thin Red Line
The Tree of Life
Days of Heaven
Planet Earth
Life of Pi
Planet Earth 1 & 2
Avatar
Gravity
Casino Royale
Up
The Incredibles
Monsters, Inc.
Apocalypto
Transformers
Wall-E
The Lion King
Fantastic Beasts and Where to Find Them
Children of Men
Deep Water Horizon
The Lord of The Rings trilogy
Your TV will sing. Don't forget to calibrate it!