Avengers: Infinity War promises to bring so many characters from the Marvel Cinematic Universe together, and even Karen Gillan's Nebula from Guardians of the Galaxy has been confirmed to appear in the movie. Thing is, it looks like she'll only be playing a small part — so small that she hasn't even read the script for the movie yet.
During a panel at the Phoenix Comic-Con (via Omega Underground), Gillan admits that she hasn't read the script for Infinity War at all, she does, however, hope that Nebula eventually gets her revenge on Thanos.
Some may have been expecting Nebula to be introduced alongside the Guardians in the movie, but anyone who say Guardians of the Galaxy Vol. 2 will remember that she decided to go her own separate way. The character does have a deep backstory with Thanos though, and it would definitely make sense that she would try to help aid in his downfall.
With such a huge cast involved, it would make sense that we won't get to see that much of Nebula. GOTG is impressive in a sense that it can equally cover all of the characters in one movie, but add to that a whole bunch of Avengers, Doctor Strange, and Thanos himself — the Russo Brothers are under a lot of pressure to do well with this movie.
Avengers: Infinity War comes out May 4, 2018.