I have searched high and low for years, and this is the only known film of him. So, it is extremely rare. (Panzerfaust says he is awaiting another film clip that apparently shows Pete's 'Sanstol Institute' in Norway. It is unknown at this time whether Pete himself is shown, and, if so, whether he is again training or sparring.)
Anyway, this film shows both Pete and Panama Al Brown sparring in preparation for their Sept. 13, 1935 rematch (after which both retired from boxing, until brown came back two years later.) It shows Pete sparring with Olav Nilsen (it is thought), and includes a quick look at Raoul Godbout, Pete's long-time Canadian manager. (Godbout is lacing the gloves of Wiksen at the very start of the film, then, at the end of the session, Pete approaches Godbout [in the suit].)
Earlier, I had uploaded to YouTube two rare film clips of Brown in action:
1) April 7, 1934 vs. Maurice Dubois (also contains rare footage of Manager Lew Burston and Trainer Bobby Diamond)
2) July 3, 1933 vs. Johnny King
I hope you enjoy these rare clips. Thanks again, Panzerfaust!
