"There's too many movies, too many distractions, and so much going on in the world right now."
Other commentators have suggested that the two-part format didn't work for Mockingjay in the same way that it did for the final films of the Harry Potter and Twilight series.
Still the two Mockingjay films, based on Suzanne Collins' novel of the same name, have taken more than $1 billion at the box office, almost double what a single instalment would have grossed.