One of the still shots released from Peter Jackson's The Hobbit: The Battle of the Five Armies includes what appears to be a dwarf mounted on an armored boar:
Image: Warner Bros. Pictures
Is it just me, or does this seem a bit ridiculous? I suppose it is a logical regression along the lines begun with The Desolation in Smaug, which resulted in Middle-earth no longer feeling real and cartoonish.
If armored boars are found in Tolkien's legendarium, would someone please refresh my memory as to where?