Minifigures - Series 20 The Knight
This seems to match my recollection of the major knights from the film, so pretty much probably not:


There wasn't a black (sable) and yellow (or) quartered knight, nor a martlet or raven on his shield.

That helmet element (Mini Knight's Helmet Closed) has been around since 2010, and has often been used in tournament and jousting sets, as well as general Castle sets of the time.