I just found a very awesome thing on youtube. Apparently there was a DBZ videogame in Japan that featured actual animated footage that acted like cutscenes to help the story along. These cutscenes were drawn and animated in the exact same way as the original series.

The footage was later released as a short DBZ movie, but never dubbed or subtitled. A group of people, including someone who actually produced the music for the original episodes, are reworking that old Japanese footage...