The LEGO Movie key chains consists of 5 key chain sets. Most sets were released in 2014 which accounted for 3 sets.
Most valuable LEGO Key Chains / The LEGO Movie set 850895 Wyldstyle Key Chain - $13.79
The minifigure keychains in The LEGO Movie theme are based on the movie LEGO: The Motion Picture, released in 2014. The minifigures include the original cast such as Emmet, Lucy/Wyldstyle as well as Bad Cop.
LEGO has released a number of key chains sets over the years based on many popular themes, including licensed themes. Most feature a minifigure attached to a key chain, although some simply have a LEGO brick or another LEGO element.