Before the actors' strike in 2023 and the writers' strike in 2007, there was the lesser-known decors' strike in 2003. If you look closely, you can see it in the movie Dogville (2003).
American History X (1998) was originally titled American History Twitter, but a fortune teller told them Elon Musk would rebrand it so they changed the title
Prisoners (2013) features the like of Wolverine, The Riddler, Scarecrow, Mysterio, War Machine and Amanda Waller. However, me and my 4 year old child realized it was NOT a Marvel/DC crossover.