The Ultimate Collector's Series, or UCS, is a LEGO subtheme of Star Wars introduced in 2000 and was meant to be more detailed and aimed at older builders. These Ultimate Collector's Series sets tend to be larger, and more expensive than typical sets.
2017 LEGO Sets
In 2017, LEGO further expanded its cinematic universe with the releases of The LEGO Batman Movie and The LEGO Ninjago Movie, both of which introduced new sets and themes that quickly became investment-worthy collectibles. The LEGO Batman Movie, distributed by Warner Bros., hit theaters early in the year and was accompanied by a dedicated theme, featuring highly detailed Gotham City sets and a special LEGO Batman Movie Minifigures Series, adding to the growing collector appeal of LEGO minifigures.