Yes, Ubuntu can use your scanner and printer.
To scan an image go to Applications > Graphics > XSane Image Scanner
To print something, just open openoffice (ubuntu comes with it) , click CTRL + P and it will find your printer, then select it and print.
That should all work like a charm.
EDIT - And about the movie software, it could possibly work under wine. www.winehq.org
for more information about wine.