Character mistake: Towards the start, when Emily mentions that the presidential limo is based on a Cadillac CTS, she is wrong. The Cadillac DTS is the basis for the car, even though it does not carry a model designation anymore. (00:14:00)

White House Down (2013)
1 character mistake - chronological order
Directed by: Roland Emmerich
Starring: Channing Tatum, James Woods, Jamie Foxx, Richard Jenkins, Maggie Gyllenhaal
Factual error: During the morning scene where snipers on top of the White House investigate a window curtain, they use a thermal imaging sight. They then see the heat signature of a couple through the window, but a thermal sight cannot detect a heat signature when it's behind glass. (00:03:45)
Walker: You just killed the Secretary of Defense.
Stenz: Well, he wasn't doing a very good job.
Question: At least a couple of times the grenades make a clear "clockwork" noise before going off, which I don't recall happening in many other films. Do any grenades actually make a noise like that? Or is it actually accurate, and silent grenades are the inaccurate "movie" versions?





Chosen answer: Grenades generally do not make any sound until they detonate. When you release the spoon (lever) as you throw it, it can make a "ping" sound as its separates from the grenade. No clockwork noises. (I'm ex Army).
stiiggy