If you want to use it for sports, you will want to reserve closer to front-row seating, so that the limited zoom is not an issue, and you can get better image quality and close-ups in a much more compact body

Movies, less so given the noise and limited filming time, limited battery life.

You ARE limited to 30 minutes video in ALL modes & 5 axis image stabilization does NOT work in 4K mode

Or for a lot more, the GH4 (but I now have serious concerns about Panasonic quality control), or even perhaps the Olympus OMD EM-1, but unfortunately that has very limited video capabilities.

n’t be sorry!