At the end of the episode, when Mr. Dekker leans forward and breaths on the enclosure of the 456, there are several smudges at the same height indicative of earlier takes.
If the Torchwood Hub is destroyed with the Rift Manipulator held within, surely the Rift would be messed up too?
This episode features the first shot of full frontal nudity when Captain Jack Harkness is shown on the CCTV image shackled to a table.
Soldier: We're looking for Ianto Jones!
Johnny Davies: You're not going to find him in my bed, will you? I'm a married man.
Frobisher: Sir, sir. I just, um, I just, um, wanted to say how grateful I am, sir.
Brian Green: What for?
Frobisher: Well, I know that I'm something of a middle man in these affairs, but I just wanted to thank you for trusting me with the responsibility.
Brian Green: All I've done is put you on the front line. That's what the front line's for, John. First to fall.
Gwen: You sure he's going to London?
Rhys: I don't question how you defend the world against extraterrestrial infiltration, don't you question my knowledge of the hauling industry, right?
Rhys: How are you, love?
Gwen: My best friend's belly had a bomb go off in it last night. Someone's been trying to kill us ever since. I'm travelling at 70 miles an hour on top of a bed of potatoes and I think I'm going to be sick.
Rhiannon: Seriously, how'd you get in that state?
Ianto: A bomb. It was meant for me and the people I work with.
Rhiannon: My God, why?
Ianto: I don't know.
Rhiannon: What sort of civil servants are you?
Ianto: Unappreciated ones.
Colonel Camara: (Regarding Gwen) You don't look like an undertaker. If more undertakers looked like you, there'd be more of a demand for bereavement.
Johnson: (Regarding Gwen) Now do you believe she's a terrorist?
Andy: She shot your wheels. What kind of terrorist shoots your wheels?
Johnson: A clever one.
PC Andy Davidson: If she's anti-terrorist, I would not mind being Uncle Terrorist.
International Air Dates:
United States: July 21, 2009
Germany: September 23, 2009 on RTL II
Sweden: February 19, 2010 on TV4