It looks like you're referencing a very specific, old-school filename from the piracy/warez scene (circa early 2010s). The humor comes from the absurd specificity: the "fix," the "xxx" (which usually means adult content, but here seems like a typo or joke), and the outdated codecs.
Here are three different posts you can use, depending on where you are posting it (Reddit, a private tracker forum, or Twitter/X).
Title: Help! My download of "This Aint Avatar 2010 xxx 3D SBS 720p BluRay x264 AC3 Fix" won't play. this aint avatar 2010 xxx 3d sbs 720p bluray x264 ac3 fix
Post Body: I’ve been seeding this relic from 2010 for 14 years, and I finally decided to watch it. Big mistake.
I’m getting green lines on the left eye, the AC3 audio is desynced by 4 seconds, and I think the "Fix" actually broke the XXX part. Is this meant to be a parody? Why is blue Zoe Saldana doing tax evasion in the second reel? It looks like you're referencing a very specific,
Do I need a specific codec pack from 2012 to make this work, or do I just burn my HDD and walk into the ocean?
Top Comment to add: "You need VLC nightly build from March 2011 and you have to disable 'Hardware Decoding.' Also, it’s not a bug—the 3D SBS is the joke." Legal risks – Copyright infringement penalties
If you want to watch 3D movies in VR, proper methods exist: