There is no direct relationship between film and megapixel count. One is analog (film) the other digital. In terms of printing, the best you could expect out of a 16mm negative would be a decent 3 X 4" print, at the very most, and that would be out of a well-exposed, sharp negative. Even small digital files will print better.
To calculate the length of 16mm film needed for seven minutes, it's important to know the film's running speed. Typically, 16mm film runs at 24 frames per second, which translates to about 40 feet of film for one minute. Therefore, for seven minutes, you would need approximately 280 feet of 16mm film.
16mm = 1,6 cm.
At 24 frames per second, it is 11 minutes, 3 seconds and 16 frames
how many pixels are in 700K
1.6cm
it is 150xa50 pixels.
300
2500mm
12 pixels tall 12 pixels wide.
1.6 cm
786432 pixels
0.48