Frozen Tangled

Frozen Tangled is a crossover between the two CGI animated movies Tangled (2010) and Frozen (2013). This can be considered one of the most popular concepts in all of the fandom.

About this Crossover
This crossover makes it to where the lore of the Guardians and the events of Elsa's coronation possible within the same world, even making it to where they are related in some way.