Behind the screens- giving specific examples of the films that you watch- How have films become commercialised and why does this matter?

films can be have commercialized with severals ways but ı know one of them it is product placement. when we watch movies we don't see every details but our brain analyze it there can be some secret ads on movies. and they gave money for these. or not secret ads people in movie can use some products and who watch it , want to buy these products we can see it in Truman show very obviously. in some scene her wife use some products and also say these products benefits and truman couldn'T understand why she do it. because he didn't know that he is a part of a tv program. programs can effect people easyly and make people buy them. for example in matrix they use a cell phone and at that days that kinds of phones became populer.