Hasta La Motion!

Hi all,
All of my work (up until now) has been with HD footage. Today I was handed a 5min short, that was Scanned from Film (35mil)
I am very fuzzy on "color spaces, 4:2:2 , Lin vs Cin, etc..

How do I know what color space this footage is in? Is it 4:2:2 ?
In Nuke, is there a way to find out?

Also, The scanned footage is on a Mac pro, which was rendered out as an QT (pro res ). If it was rendered with the wrong (pro-res setting) will that screw up my color space?

When the guy rendered it on FCP, I told him to pick 4:2:2,
How can I tell if it is 422 , linear, cin,10bit, 8 bit?

My biggest problem is that NUKE 32 bit, Can’t read the QT.
It says No such file or directory. Yet, when I select the file, it shows the movie in the "preview" window .I could scrub thru, it but. as soon as it comes in, I get the error.

Thanks,