Back in 2004 Tim Miller from Blur Studio released a CGI animated short film titled Rockfish. The premise is that huge fishes swim in the lava beneath the surface of a faraway planet. An exterminator character uses an elaborate rig to drill a hole to catch the mother of all Rockfish. The short film garnered some well-deserved praise, not only because it was at the cutting edge of technology at the time, but also because the story and its direction were damn awesome.
Here's the original Rockfish short film:
There have been talks of doing a feature film based on Rockfish, even heard that Actor Vin Diesel would lend his voice to the lead character. Unfortunately the project has fallen in limbo since then...
It's not clear if we'll ever get to watch a Rockfish movie on the big screen. But I definitely pray for it!