What follows is not likely to be novel. It is surely naive.
The most interesting question to ask about a film is "IS IT AWESOME?"
Comic films are underrated compared to dramas. Or to put it another way, dramas are overrated. Great dramas are fine, but Good dramas are often mediocre, and sometimes bad. Compensate by assuming that critical opinion is tilted against comedy and toward drama, and act accordingly.
Film is a visual medium. Based on that fact alone, the Wachowskis' "Speed Racer" is a minor classic. More generally, there seems to be a sort of high art (what I think of "photos composed by a cinematographer") that are praised excessively, while visually creative films often end up regarded as somehow lower forms of art.
Movies about movies are the laziest of lazy settings. But I cannot deny the greatness to be found in the subject. "The Player" and "Sunset Boulevard" nearly justify the genre all by themselves.