8. The Tin Man’s Oil Wasn’t What It Seemed

The oil that the Tin Man uses to help himself walk again was actually just melted chocolate!

9. The Director Slapped Dorothy

Judy Garland, who played the amazing part of Dorothy, couldn’t keep a straight face during the Cowardly Lion scene. After endless restarts due to Garland’s immature behaviour, Victor Fleming the director took to doing what no other director has done before – slapping the lead actress! He took her to one side and said she needed to start taking things seriously.