She was credited at the bottom of the original poster. Agents negotiate the billing and placement of names on movie posters. The placing on the poster also determines how much a actor gets paid and/or how many lines a character has in the movie.
Pom Klementieff’s, Vin Diesel, Karen Gillian, and Benedict Wong’s characters were on the Infinity War poster but weren’t credited at the top of the poster.
Where was the outrage when Marvel released that poster?
Outrage culture strikes again.