"I'm so sorry I can't talk right now, we're shooting the final days of my life."

That's what 'Cruel Intentions' star Selma Blair speaks into a phone in a clip of her new documentary, 'Introducing, Selma Blair.' Its trailer just dropped last night.

From the looks of it, the doc is an incredibly intimate peek into some of Selma's most vulberable moments as a person with multiple sclerosis (MS), a brain and spinal cord condition that Selma describes as basically "the symptoms of an unhealthy immune system."

So what does that actually involve? Unless we or someone we know (like recently, Christina Applegate) has MS, it's unlikely for the average person to understand how truly tough and unpredictable it is. Even Selma's close friends didn't seem to know- including the celebrities quoted below, until she bared it all in the following clips.

'Introducing, Selma Blair'

Selma has been working on this documentary for years, but only now are clips being shown via the trailer she and the production company shared online.

It shows Selma at her best AND at her worst. In some scenes, she appears to be as physically healthy as she was when she starred in movies like 'Legally Blonde.'

In most, Selma is fighting against the painful symptoms of her MS experience. From crying in a hospital bed to basically crawling up her stairs on hands and knees because she was unable to walk unsupported at that time, viewers can witness the harrowing effects MS has on Selma (and how impressively she fights back).

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Her Friends Are Inspired

via Instagram

Within hours of posting the trailer to her IG, Selma's comment section was bursting with love from her fans and famous friends.

"Oh WOW Selma. This is such a gift to the world, to those living with MS, fighting MS, those of us who love you and your heavyweight’s strength," said Debra Messing in a long comment that wrapped up with "Keep fighting. You’ve got this."

Ellen Pompeo, Celeste Barber, Kris Jenner, Kyle Richards, Sharon Osbourne, Rumer Willis, Christie Brinkley, Rosario Dawson, and dozens upon dozens more celebs gushed over Selma's bravery and expressed gratitude at having her in their lives. 'Cruel Intentions' costar Sarah Michelle Geller simply wrote "can't wait."

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Even Celebs Who Don't Know Her Were Wowed

Like the rest of us watching, many other celebs didn't have to know Selma personally to feel moved by her story.

'Schmigadoon actor Jamie Camil commented "Selma, I don’t have the pleasure of knowing you...Thank you for gifting us with your vulnerability and honesty. You’re a titan."

From Zoe Saldana: "You have humbled me to my knees. Our hearts are with you and your son. You are so strong and resilient."

Tan France from 'Queer Eye' wrote "I can’t wait to watch. How beautiful you are!"

We're with Tan. The trailer looks unforgettably touching, and as Selma herself says in it, "You ain't seen nothing yet!"

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