The first movie was just an overview of the first season of the show. My sister liked the movie, but she's not into animation. So, she missed out on the true storyline.
I honestly feel that it's not something that should not be attempted, in the sense of live-action. Small, movie specials, like the ones we encountered in the first series, would be ideal.
And when more characters emmerge and become more involved through the new series, i believe they should make some cartoon shorts. I loved those from the first series! emotion_kirakira