metalbeast’s review published on Letterboxd:
I watched this yesterday and gave it 2 out of 5, but it was bugging me, and I had to adjust my score to 1.5.
The problem with Sublime is that it doesn't have anywhere near enough substance to carry it for the 113 minute runtime. The moment you work out what is actually happening, it just turns into an exercise of staring at the clock until the end.
This is a psychological thriller with an interesting premise and set up - but it runs out of steam at the end of the first act and never recovers. You can guess the ending long before it happens, and there is just very little to actively look forward to.
It would have made a reasonably interesting short in an anthology, but as a feature length movie, it fails completely.