It has high potential but it does need some work, I would suggest increasing fps to atleast 15-30, that would really help, also try creating another app that you could remotely take pictures, and 1 more thing is add some more music and decrease the sound of the music because when adding sound effects its nearly impossible to hear the sound effects because of the music.
Inzo62 about LEGO® Movie Maker, v2.6.0