I think the closest you will get with SWFTOOLS: http://www.swftools.org/
It can extract bitmaps and flashvars. There are windows and files with Linux files, so you have to run them from the command line, which should not be a problem. The main problem with converting swf to jpeg is that for a large number of flash files, ActionScript is required to show something useful, and then you still need to have the correct frame, so it may not be so simple.
So, I would answer: Yes, it is possible if the film is very simple and consists only of simple bitmap images. But also not: for most swf it will be very difficult without using a flash client and screenshots if you really need a movie output.
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