Would you like to see part of Judd Apatow's upcoming film, Funny People, as it's being filmed, and also enjoy some stand-up comedy and support a good cause in doing so? If you said yes to this, and you also happen to be in Los Angeles on Jan. 13, 2009, then you are in luck. Apatow will host a special stand-up concert that night at The Orpheum Theatre in L.A., with some of the actors (Adam Sandler, Seth Rogen, Jonah Hill, Aziz Ansari) performing stand-up as their film characters, other comedians such as Patton Oswalt appearing as themselves, plus other surprise special guests.

The Universal Pictures film, coming to cinemas on July 31, 2009, also features Leslie Mann, Eric Bana, Jason Schwartzman, RZA and Aubrey Plaza.

Tickets for "A Night of Funny People" go on sale at noon Pacific today (3 p.m. Eastern) through Ticketmaster. Proceeds will benefit the National Multiple Sclerosis Society and 826LA, a non-profit supporting students 6-18 with their writing skills.