I’ve been vaguely aware of the ribald comedienne Sarah Silverman for years. Most recently, she had a memorable turn in The Aristocrats (second only, perhaps, to Bob Saget). Via Robot Wisdom, I read a profile of her in Rolling Stone, which coincides with her upcoming movie, Sarah Silverman: Jesus is Magic (questionable content and wacky Flashness ahead):
“People have said that it’s going to be my year for the past twelve years” is how Silverman looks at it, but this year people might be right. There she is, as Hadassah Guberman on Comedy Central’s Crank Yankers; one of the high points of The Aristocrats; the second-most-memorable person on the televised roast of Pamela Anderson (“I’m glad [Courtney Love] is here” was one of Silverman’s lines. “I left my crack in my other purse”).
Assuming you’re not offended by humour about sex or race, you may enjoy these bits from the film, or at least the trailer.
DarrenBarefoot.com 
Sarah Silverman also plays various parts on Mr. Show, a mid-90’s sketch comedy show that aired on HBO (starring David Cross and Bob Odenkirk). Quality material, worth getting the DVDs.
I’ve had an eye on S.S. since I first saw her one Mr. Show.
Her (apparently scene saving) improv when getting beaned with a ‘rock’ in the Jesus Christ Superstar sketch was hysterical, and I’ve had trouble taking my eyes off her ever since… Damn that Jimmy Kimmel.
(Long story short(ish) on the above mentioned ‘beaning’: Shooting was going WAY overtime and they were losing their light on their only day on location. Shooting a pivotal shot where Jesus (Jack Black) tosses a rock ove his shoulder out of frame, they had yet to get a good take and were on what had to be their last attempt. J.B. tossed the styro-rock up out of frame and – 1 in 10,000 chance – it came down square on S.S.’s head. You couldn’t have repeated it if you tried. S.S. had the presence of mind to go down like a sack of potatoes. I know I would have probably gone ‘Ow! Hey that was funny!’ But she did exactly what needed to be done. In the scene it’s hysterical. She’s in the deep B.G. – not even really part of the scene except as an extra – but that one little act steals the scene… on most shows that would be an issue, but on Mr. Show = perfection.