Pre-Production: Pre-Production is the ‘fixing up’ of some of the elements of a film or other performance. This can include things such as, writing up scripts, completing storyboards, cast selection, finding the appropriate locations, preparing for special effects (green screen) and preparing sets.
Production: Production is the making of the raw materials/components and is also referred to as being manufactured. This means the filming of the clips with actors on set whilst using script.
Post Production: Post production is the process of editing and rendering the clip. This is also a chance to change/make better anything that wasn’t good enough or needed re-doing.