I’ve posted a few times about Matt Tyrnauer‘s Scotty and the Secret History of Hollywood (Greenwich, 7.27), a 98-minute doc about Scotty Bowers, the amiable, formerly unsung go-between who wrote about servicing Hollywood’s gay and bisexual community during the ’40s, ’50s and beyond. His six-year-old memoir is called “Full Service: My Adventures in Hollywood and the Secret Sex Lives of the Stars.”

I will once again share what I came to believe during the watching of it, which is that Bowers, whose tell-all book has been challenged and mocked and who’s been described here and there as highly imaginative, isn’t lying about anything.

For most of Tyrnauer’s surprisingly intimate, low-key, non-gossipy film is about old Scotty — a 90something, white-haired pack rat who owns two or three homes in the Hollywood hills and lives with a good-natured, seen-and-heard-it-all wife who loves him — and only intermittently about the mostly gay and bi movie stars and celebrities (Cary Grant, Spencer Tracy, Walter Pidgeon, Vivien Leigh, Charles Laughton, Vincent Price, Katharine Hepburn, Noël Coward, James Dean) who regarded Scotty as a trusted pimp and pleasure-giver who could and did set them up with same-sex lovers.

After studying Bowers for 98 minutes and listening to him talk about how terrifying things were for gay and bi actors in the intensely homophobic big-studio era, and considering the affection he has for his old gay friends and the strong feelings and immense respect they have for him…after the film is over you’ll probably be convinced, as I was, that Scotty is no bullshitter.

It follows that a high percentage of his recollections about the private sexual lives of movie stars are most likely true. I found this an inescapable conclusion. Just as your gut tells you that Donald Trump is one of the worst bullshitters in the history of western civilization, you can just sense that old Scotty is a straight-shooter. Okay, maybe he’s hazy on a few historical details but the man is 94, for God’s sake. Cut him a little slack. He’s a man of apparent honor. I don’t think I’m wrong about this. I really don’t.