Films tend to play it safe by copying other recent successes and following proven formulas. They use the same marketing techniques as other businesses, such as test audiences and focus groups. They most often think of what they create as a product, not art. Of course not. Each medium has differing agendas and a different focus.
Some films are very artistic, and some plays silly and insignificant.
But in general, film is much more profit-driven than theatre. Again, there is truth in what the shirt says. Television, the newest of the modes of dramatic art is fighting for respect. It is on the bottom of the pecking order, looked down upon by both stage and film people alike. What most distinguishes television from the other modes of dramatic art is that it is broadcast.