Dredd.
Dredd, Dredd Dredd Dredd.
Then The Raid (to check what Dredd was inspired from), then Mile 22 because The Raid's Iko Uwais and a stone cold (stone cold - like "The Departed" level stone cold) Marky Mark are in it, then Dredd again.
DISCLAIMER: After Mile 22, an Iko Uwais rabbit hole is expected. This will, unfortunately, inevitably, cause a slip towards Wu Assassins.
Instead of slipping into said hole, re-watching The Raid and Mile 22 is a good system cleanse.
Then, you can re-rewatch Dredd again, while hoping for a sequel of Mile 22 which will never come because it bombed.
And, of course, Steel Rain every Christmas.