Continuity mistake: When the mayor of San Francisco signs the new 'gay rights bill,' he puts the pen to paper with his left hand in the far away shot. When the camera cuts to the close up of him signing the bill, he's writing with his right hand.
Continuity mistake: When James Franco leaves Harvey, his dog is sitting on a chair next to him. The dog disappears in the next scene, but is back seconds later. There is not enough time for him to jump off and back on.