Tch. Free hint, I suppose ...
The film is a satire of film making, with the lead character determined to make a particular film. He quotes the title several times, but that is as much as we learn about it. In the end, he never makes it.
In quiet tribute to this classic movie, the fake title was eventually used a couple of times, most famously just a few years ago. This latter film also followed some plot points from the earlier one.