Originally Posted by Pezzaturra
So in that light why the hell we are buying 1080p Blue Ray players? If inverse telecine is working then we only need 1080i .
You'll have to ask the BD committee about that. But we get BD players because they are the highest quality HD source that's available to consumers. Also, not all TV sets or BD players do inverse telecine correctly.
Do they shoot TV programs nowadays with 1080i/1080p cameras?
It depends. Many HD video cameras are still 1080i, but things are changing. 1080p 30fps isn't uncommon anymore.
Are movies still shot on film have almost unlimited resolution? (The film-grain being much smaller than any pixel currently.)
Film doesn't have unlimited resolution, but yes many movies are still shot in film, though that's also changing. For example, Sony built George Lucas a bunch of custom 24 fps progressive digital video cameras for Episode II. Episode I was shot on film, and then digitally scanned for the special effects people to work on them. The scanning process took so much time and effort that he decided to shoot digitally to avoid the scanning.