That “secret” – that Clift was gay during an impossible era (the s through the 60s) – led many interpreters to conclude that the actor must.
That secret, depending on your source, was that Clift was gay or bisexual. Making Montgomery Clift, which was co-directed by Clift's nephew.
Edward Montgomery "Monty" Clift was an American actor. A four time Academy Award nominee .. LGBT community, she made the first public declaration by anyone of the fact that Clift was gay and called him her closest friend and confidant.