Perhaps the most commonly used TV and Movie phrase that I never hear real people use is "just like that.." You hear it in anime all the time and I suppose it's used as a filler for when the original Japanese dialogue is longer than the English. "So you bought a car.. just like that?" "I went to the market and saw Tammy.. just like that!" "Yurimaru wound a line around Benisato's neck when she wasn't looking and killed her... just like that!" I'm still marathoning Babylon 5 and I've heard it like 10 times. This and teenage boys who are somewhat nerdy bobbing their heads when they think they're being cool. I see that all the time too in films and never once have I seen that in real life. Anything you've seen in films like that that that just doesn't jive with real life?