Refer to the input text as context and select the correct relationship between 'Batman' and 'Justice League' from the available options.
Options: chief executive officer, member of, employer, industry

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