There is more vomit around Jane's mouth when she starts to choke than when she dies.
After Jesse smashes the glass against the wall, there is no glass visible anywhere on the floor around Walt.
When Jane is choking, she projectile vomits and some of it lands on Jesse. In the subsequent wide shot, the vomit is no longer visible on Jesse's arm.
Between 1:49 and 2:48 while Walt is holding Holly her hair lies flat. Between 3:29 and 3:56 Holly's hair is ruffled. At 4:04 when Walt hands back Holly to Skyler Holly's hair is lying flat yet again.
When Jesse throws the glass at the wall (and missing Walter), the periodic table starts to roll up before it gets hit.
When Walter enters Jesse's apartment from the back door, crew members are visible through the window.
As Walt enters Jesse's apartment after speaking with Jane's father at the bar and finds Jane and Jesse passed out in the bed, Jane's eyes can be seen briefly blinking open and closed.