Stand Up To Cancer (SU2C) – September 7th at 8p ET On September 7th, the entire group of A-list celebs are going to be together helping Stand Up to Cancer during the third SU2C primetime television fundraising special on Friday, Sept. 7 (8:00-9:00 PM ET /PT). Gwyneth Paltrow, Julia Roberts, Matt Damon, Michael Douglas, Jessica Biel, Samuel L. Jackson, Jeremy Renner, Seth Rogen, Emma Stone, Taylor Swift, Coldplay, Alicia Keys, Tim McGraw and SU2C Co-Founder Katie…