Continuity mistake: As the crowd is cheering for Tommy and Greg at on the stage after the premier, Tommy has his sunglasses on his face in a frontal shot. But it cuts to behind them and suddenly his glasses are up on top of his head. (01:33:25)
Continuity mistake: When Tommy and Greg get into the limo to head to the premier, there are boxes of The Room merchandise and promotional material scatted all about in the limo and filling the driver side of the back seat. But in the shots after they drive past the theater, the seat is suddenly completely empty with all those boxes disappearing. They are also missing in several of the close ups of Tommy, then back in others. (01:20:15 - 01:21:00)
Continuity mistake: Tommy and Greg get into the limo to head to The Room's premier. Inside Tommy is sitting looking out the window holding up a can of Red Bull with a straw. Greg leans his head back and it cuts to a close up of Tommy, and suddenly the can is down and he has a grimace on his face. (01:20:20)
Continuity mistake: When Tommy gathers his crew on the first day of shooting and has Marcus come to film him for the behind the scenes, Marcus starts to step to the side past a line on the ground and goes over it. Camera cuts to Tommy shouting "okay!" and then back to Marcus he's suddenly more in front of Tommy again where he had just moved from. (00:44:00)
Continuity mistake: After going to Tommy's apartment in LA, they stand on a balcony and shout that they will own L.A. In one shot Greg's arm is up but to the side with his hand almost in front of Tommy's face. But in the next shot from behind Greg's arms are stretched high up into the air. (00:21:15)
Continuity mistake: Tommy takes Greg to his home, and inside he gets a Red Bull and sits down. He is holding the can in his right hand and to his side, but the camera cuts to a side view and suddenly he's holding it in his lap with both hands. In each shot when the camera changes angles, it continuously goes back and forth between these two positions. (00:12:20)
Continuity mistake: When Tommy comes to pick up Greg on the street where Greg was playing with some kids, Greg goes to get in Tommy's car. As he walks around it, a kid with a burgundy striped shirt is standing by the car with the football, but as he's getting in in the next shot the kid changes to the green shirt kid holding the football. During this part of the scene, the kid by the car changes back and forth between the green shirt and the burgundy stripe shirt kid several times. (00:06:10)
Factual error: In the famous "I did not hit her. Oh hi Mark" scene, it is depicted to have taken 68 tries to get right. It actually only took 32. (00:52:20)
Answer: He was a fictional character. However, Apatow says he was playing a version of himself, though he didn't initially realise that when being cast. He claims he is not that bad in real life; his character is also an amalgam of other producers.
raywest ★