Also be very careful about frame aspect terminalogy. For film cameras its 1:33, 1:66, 1:85, 2:39
The formats 16:9, and 4:3 are television formats. You can crop cinema formats to tv. But cant do vis versa.
Widely used aspect ratios include 1.85:1 and 2.39:1 in film photography, 4:3 and 16:9 in television
This will come to bite you when you try to sell the movie and its not properly formatted