Michael Hohner , Aug 24, 2000; 01:28 a.m.
A good film (as Velvia) and good lenses can resolve about 120 lp/mm, i.e. 240 pixels/mm. This means a 35mm frame has a resolution of 36*240*24*240=4976640 (almost 50 MPixels). You can use Moore's Law to estimate when this resolution will be reached. My estimation is 4 to 5 years.