Take context from the input text and decide on the accurate relationship between 'Batman' and 'Justice League' from the options provided.
Options: industry, member of, chief executive officer, employer

Some of his most noteworthy projects include “Good Will Hunting,” “Pearl Harbor,” “The Town,” “Argo,” “Gone Baby Gone” and “Gone Girl.” Affleck is also slated to take on the role of Batman in the four upcoming films, “Batman v. Superman: Dawn of Justice,” “Suicide Squad,” “The Justice League Part One” and “The Justice League Part Two.” Jennifer Garner Net Worth: $60 Million
member of