Live Poll: Movies With Longest Production Time
In general, the time that a movie stays in production is from a couple of months to about two years. The Other Side of the Wind (2018) holds the record for a movie to be in production for the longest time.
Here is a list of movies with at least 1,500 votes that took at least three years in production (script to screen).
Which of these movies do you think was worth the wait?
Source: List of films with longest production time