Holland also appeared in the 2019 superhero horror film Brightburn, which Gunn wrote and produced.
Also pictured at the festivities were Guardians stars Chris Pratt, Zoe Saldaña, Karen Gillan, and Pom Klementieff; Peacemaker actors John Cena, Chukwudi Iwuji, Nhut Le, and Steve Agee; Suicide Squad stars Joel Kinnaman, Nathan Fillion, Flula Borg, David Dastmalchian, and Daniela Melchior; and of course Gunn's brother and frequent collaborator Sean Gunn.