Several clips of TP and Linda Christian from old British Pathe film footage. This link is one of them. Type in Tyrone Power at the site, several other clips are returned, some with sound, some without, one or two in Italian (on his honeymoon).
Wow, AV what a find :-)!! These are amazing!!! The link you provide has some (inadvertent :-)?) humor as well; from TP spilling his drink to looking at the missed tray holding drinks longingly :-)! Some fascinating (!) insight into their early relationship as well (the hand holding at the end is touching).
Gotta love the curled hair for "Prince of Foxes" as well :-)