do you speak a foreign language? and foreign movies about ..

i studied spanish in middle school, german in high school, russian in
college and remember absolutely nothing.

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you know how hollywood movies about foreigners often have
american/british actors speaking with accents. consider schindler's
list or unbearable lightness of being.

when other nations make movies about america, do they speak their own
language in american accent?
for example, imagine a french movie about andrew jackson with a french
cast. do they speak french in the american style? what does that
sound like?
do french make fun of americans speaking french like we make fun of
french accented english? ooh lala, etc.

can you learn the essence of another language by speaking your native
language in the flavor/accent of the foreign language? for example,
does pepe lepew's english capture the essence of french?
if you speak italian in the john wayne drawl, can you learn the
essence of americanism even thru italian?