By: Addison Wylie Last time we checked in with TIFF’s Mel Brooks retrospective, it was to recover old memories of his classic Blazing Saddles.  Another reason why It’s Good to Be the King is a useful look back at Brooks’ filmography is that it allows audiences to see how the filmmaker’s sense of humour has aged. Unfortunately, Robin Hood: Men in Tights isn’t exactly a fond way to remember Mel Brooks’ signature silliness.  His love for cinema and poking fun…