If a Director is missing from the film crew, it is same like if an eye is missing. Each and every work always needs a vision, if that work needs to be complete in a proper Rhythm. A Director is the soul of the movie who will control the artistic and dramatic aspects. He is the only person you can blame upon if something does not works in a film.
If a Producer is missing from the film crew, than your dream movie will remain dream only. It depends on this person that if you can even afford Film Clap Board or not. Let me clear you one thing that Producer is the only Director of the film, Don't believe me? Enter into the industry and see yourself.
If an Assistant Director is missing from the film crew, than film Director will die because of burden and your film will get complete in...I don't know how many years. They make the day and make the crew work together. If you want to find Assistant Director on set than follow the yelling sounds.
If a Script Writer is missing from the film crew, than you will definitely forget that you had to find the treasure in the film and you will not know when the Comedy gets converted into Horror or Drama. Script Writers sets the framework and your story is incomplete without them actually it does not start without them.
If an Actor is missing from the film crew, than its not even a film, it's a Polenta. An actor is responsible to take your audience on the magical journey of your story. A movie without an actor is same like a Magic Show without a Magician. A good and famous actor can bring back your all the production cost.
If a Cinematographer is missing from the film crew, than your movie will look like your 80-90s Wedding Video and I am serious about it. A cinematographer on set works as a Translator as he is the only person who talks with Script in mind and convert the Director's vision into Visual. They will make your each frame alive.
If a Video Editor is missing from film crew, than your years long hard work is not less than epic Mahabharata series used to come on DD National in 90s. You (Director) will need to ask this member personally for tea and don't forget to sign his checks first otherwise when he will get angry, you will have to face the rotten eggs on your face. Personally saying, Editors are the GOD as they are the only person who can cure your worst footage into useful product.
If an Art Director is missing from the film crew, than...What than? Stupid Person, they are the Architect of your movie. Go and find the best Art Director you can afford otherwise your film will look like...It will not look like anything and nobody will look on it. What kind of person you are Damn. They are also kind of Director on your film set.
If a Casting Director is missing from the film crew, than half of your film is complete. Trust me, Casting Director can reduce your craving of Film Success. They work very close to Director and Producer and help in organizing the film. So many movies remain in between or fails on box office due to its casting problem. A good actor is Soul of your Film.
If a Location Department is missing from the film crew, than your film will delay or you will have to start your pre-production very very soon. A Location Department is needed before you step on the field. Hire one if you don't want to end up facing your producer in his office. Actually this department have very good contacts and arranges awesome locations for you.
If a Photo Editor is missing from the film crew, than your first impression is completely messed up. The grabbing of attention of an audience is the key element of Filmmaking so definitely you will need this department. Sometimes a Photo Editor comes with an idea which Video Editor don't so don't think him less than anybody.
If a Content Writer is missing from the film crew, than your Director and Screenwriter can face so many problems. Nobody is perfect so a content writer by his experience and experience can fill out the loop-holes in your script and obviously he can be useful in giving your promotions a new attractive look and grab the people.