Getting a 24p look with NEX-5

I don't know about NTSC but for PAL
slower than 1/25 = 1/25 iso 3200 in video mode
1/30 = 1/25 iso 800-6400?
last step 1/30 before 1/40 = 1/48 iso 200, 25 fps (for a near perfect 24p look!)

I shoot in this order:
1. Set focus with focus assist
2. Set 1/48
3. Start recording and hold shutter
4. Adjust aperture or ND for correct exposure