[The E]

I've read somewhere that, Adolf's father changed his last name from Schicklgruber to Hitler at some point, so if there's any more or less distant family related to him, they most likely go by Schicklgruber.

Schicklgruber was his grandmother's maiden name. See the wiki for details.

Also, somewhere I've read a story of Hitler's illegitimate son somewhere in France (funny thing: he fought against Germans during the occupation).

Allegedly. The evidence, at least the stuff available via a cursory search on the web, is scarce.

[est1895]

What about this link?  I think the sub titles are way off.

http://www.youtube.com/watch?v=cbxbEv2xMnU

[The E]

They are completely accurate, given the constraints of subtitling a movie. It's not a word-for-word accurate translation, but then, translated subtitles never are.

[Vidmaster]

it's an elite cadre of german traffic police

WAS! IT WAS! Goddamnit, this was about 70 years ago under Hitler.  That was a different country, you know?
We are a Republic now people!

[est1895]

In this part of the movie, Pluskat says, "Ja, Ja."  Is this a dialect

http://www.youtube.com/watch?v=PMoNSFmACWI

[The E]

No.

Stop asking stupid questions, and learn some german for real.