Why Don't Trailers for Big-Budget Films Premiere on the Same Day?! (Patreon)

Thanks for your question, DANIEL GALLACHER!!!

The full Question reads:
Is it just a coincidence that trailers for big budget films don't usually come out on the same day or is there actually some secret conversations between the studios behind closed doors? As obviously the dates aren't announced a long time in advance unlike the release dates for the films themselves.

---------------------------------------

Any points we missed on this one, peeps?!