@hube2,
Many thanks !!
This third solution seems to be very cool.
I need to do it as a “pre_get_posts” function with my $taxquery so as to hide some custom taxonomies.
I never did a loop inside a function inside my functions.php, the loop is inside my archives-films.php.
I have to test this, I will do it tomorrow and keep you in touch.
Thanks for all.
Best.
Pierre