Hello Susi!
Wow, you have a mess on your hands, right? We can sort this out.
First, ask the director what his intended output will be. HD? SD? If HD, which format? 1080i or 1080p? Or will it be 720p? What about frame rate? 24, 29.97, 23.98? If SD, you still have to know your intended frame rate for the final sequence.
Once you find out exactly what the director wants at the end of the project, you can begin work. Always work “backwards” on a project like this.
1. First step is to “conform” or change all your footage to the same frame rate, the final frame rate of your sequence. Also, get everything to the same frame size, as well, by scaling it. You will also need to get all the footage into the ProRes 422 format.
It is best to have scaling done by a post-production house that has a piece of hardware called a “Teranex”. This will give you access to the best quality scaling for HD. If it is not in the budget, you can do an OK job in Final Cut Studio. Use Compressor to scale your footage (perhaps overnight). Avoid scaling directly in Final Cut Pro, it’s quality is OK, but you can do better.
2. Once footage is all in the proper format, ensure that you are working in a sequence with the intended frame size and frame rate. Go to Final Cut Pro > Easy Setup and choose the proper setup for your intended output. Use ProRes as the sequence codec, not HDV or DVCPro HD. After you choose the right setup, click OK. Then go back to the project and make a new sequence (CMD + N). Begin your edit in this new sequence.
3. Regarding aspect ratio. Try to scale everything up to full frame in Compressor. If your blowing up the SD footage to a full HD frame looks too poor, scale the footage to letterbox or pillarbox (black bars on the top/bottom or left/right).
With a decent MacPro setup with fast drives and a good external monitor, I think you can get going on this project.
Good luck!
Kevin Monahan
60 Blu-ray Templates for Final Cut Studio 2009
http://www.fcpworld.com
Author – Motion Graphics and Effects in Final Cut Pro