In addition to 3D movie screenings, and sometimes 4D screenings in which seats will move and specific smells will fill the air, some films are now experimenting with "5D" screenings. And that means, if you go to one specific screening, things will be thrown on you that can stain your clothes.
This sounds nuts, and perhaps a bit like a Gallagher show from the 1980s, but for one (free) promotional screenings of Captain America: Brave New World, audience members will literally have various substances thrown at them...