Does existentialism exist?

Late 50's cinematic movement inspired by fatalistic (euphemism for 'nihilistic') and existential issues led to 'the new wave' in France. Outstanding artwork from figures such as Jean Luc Godard (i got to see breathless) and Francois made a global impact in movie-making.

Firstly , what does 'existential' mean in this context?
"Existentialism" as a movement affected art and philosophy. It conspicuously dissects human nature-idea, choices, experience, ummm....even why a person would behave in a given situation...gawd... its longwinded and rhetorical...Lets explain.
A pioneer in this stream, Sartre prososed a dictum that revolves around 'the essence of existence for humanity'. A freedom to choose (in the unreal world?? ...authenticity, a super-set of reality, is prime for existentialists as opposed to postmodernists). We acknowledge, choice and experience result in phenomenal anxiety, as it sparks the fear of the logical outcome, and discernibly includes the angst of being judged....freedom to choose insouciantly and yet dread the consequences?? Moreover, existentialists denounce Lord almighty, though are poignantly conscious of death and darkness! Now, now,...help me count the oxymorons...
The dictum rightfully proposes the idea to 'exist to make choices'. Neither fear nor disquietude would exist, as 'existence' itself preceedes the essence of mankind. The essence often refered to as 'truth', itself is meaningless if there is no existence. I completely acqueisce with that, however, if this concept belongs to unreal world, truth and existence need not matter....

Why are noir films existential? as i said before, they are obsessed with the quest for truth within the unreal dark dangerous world, fighting existential issues, while we sit anesthetized ready to judge....

Coming back to new wave, the revolution sparked a whole new series of different movies...fancy tools, new cinematographic expressionism, environment-friendly locations, unusual scripts, remarkable themes and depressed characters.