Lui et l'autre

I remember when I was a child and I watched this rubbish by the first time. Bad actings, bad dialogues, no plot at all, just a few bad jokes without a single funny thing...well, the only good thing about this is that keeping in mind I´ve watched it one single time and it was in my early childhood(I´m 27 years old now)this movie has to have something strange that has made me not forgetting it.Perhaps it was in that period of life in which everything around you is printed in mind in a special way. Perhaps I thought (innocently)that it could be the best comedy ever...who knows!.Anyway, it must be seen because I think you can learn about every movie, as bad and stinky as it is.The problem is that I still haven´t understood what in the hell I´ve learned from this one.