She's been called "a disgrace" by President Donald Trump; "notorious" by adoring millennials who view her as a black-robed superhero; and "friend" by the late Antonin Scalia, a man who didn't suffer liberals lightly. But in the compelling documentary "RBG," Ruth Bader Ginsburg isn't much for labels. In her own deep-blue eyes, she's little more than a humble shepherd ensuring the U.S. Constitution lives up to its guarantees of opportunity and justice for all. And "all" is what the polarizing Supreme Court member is all about.

For the feisty 85-year-old, gender equality has been her life's mission, beginning at Harvard Law (where she was one of nine women in a class of more than 500 students) and continuing through landmark SCOTUS decisions on women seeking reproductive rights and equal pay, to protecting the vote for African-Americans under assault by GOP factions intent on returning to Jim Crow. In between, Ginsburg has managed to raise two kids, fend off two attacks of cancer and bury a husband who gladly devoted his life to her. Yet, she still stands tall, or at least as tall as a 5-foot-1 firecracker can.

Dutifully, and fitfully, directors Betsy West and Julie Cohen work themselves into a lather attempting to condense and cram Ginsburg's life story into a far-too-brief 95 minutes. But in the wake of some of the bladder-testing endeavors I've seen of late, it's nice to experience a film that actually leaves you wanting more. And what you want most, is the charming, drolly funny Ginsburg opining on what she's seen and done over a lifetime of jurisprudence.

Clearly, West and Cohen don't favor that tact, opting instead to load up on talking heads, archival clips and revisiting Ginsburg's greatest legal hits. No doubt all of these people and things are informative, but the moments where "RBG" most assuredly slams the gavel down are when we're one-on-one with the Brooklyn native, watching her eyes well when talking about her beloved, "funny" hubby of 56 years, Marty, or watching her demurely giggle while watching a clip of the marvelous Kate McKinnon spoofing of her on "Saturday Night Live." These are the times when "RBG" comes most alive.

Still, what's here is more than enough to sufficiently get your legal briefs in a twist. Love her (like Scalia) or bemoan her (like Orrin Hatch), the consensus is always an undying respect for a woman who has suffered no quarter and steadfastly adhered to her mother's advice to always be a lady. And that meant keeping a level head, never giving into angry outbursts and remembering that your enemies are people, too. The movie tells us that Ginsburg has always been a listener, even if the person is talking bullpucky. It's how she and Scalia became inseparable pals.

Regrets, she has a few,  most notably the day she forgot what her mother told her and unleashed a verbal attack on Trump during the 2016 election, calling him "a faker." Under intense pressure, she issued a mea culpa. But it wasn't like one of those insincere apologies passing through the lying lips of most politicians; it was an honest, straightforward "I'm sorry" rooted in genuine remorse. You can see it still bothers her today. But that doesn't mean she now likes Trump. To the contrary, we see her hilariously satirizing The Donald the night after the 2016 election making a cameo as the haughty Duchess of Krakenthorp in a production of "The Daughter of the Regiment" at the Washington National Opera. (She adores opera, by the way.) She ends her brief Act II monologue with this warning: "Dropping traditions that have worked and are continuing to work is like throwing away your umbrella in a rainstorm because you are not getting wet."

That's so Ginsburg. No wonder she's become the unlikely Internet hero for social networkers who have lovingly dubbed her "The Notorious R.B.G." in honor of the late gangsta rapper The Notorious B.I.G. A flattered Ginsburg admits to getting a kick out of it and the clever memes that have popped up online; my favorite being her as Wonder Woman. It's a kick, and so is Ginsburg. Heck, even Orrin Hatch finds nice things to say about her — and without grimacing. That's some lady. Just like the one her mother always wanted her to be.