Your answer depends on both the screenwriter and the producer.
It is possible that a screenwriter was paid in full for the script, in which case another screenwriter may be hired 'on set' to re-write scenes depending on variables that dictate edits. For example, if the original script was set in Chicago, and the shooting location is Monte Carlo, certain elements of dialog or plot could be adjusted to accommodate this change.
There are movie sets where certain actors 'demand' more lines, and the producer and director agree. In these cases, the screenwriter adds dialog -- screen time -- for the actor making the demand.
Finally, there are 'script doctors' who re-cast completed scripts according to 'notes' given by other participants, such as producers, director(s), actors and so forth, prior to finalizing the shooting script.
Every movie starts with a script, and it is the screenwriter's role to write it -- in the beginning. Some screenwriters also work on subsequent drafts of scripts -- re-writing them, and there are screenwriters who work on shooting sets, to craft scenes or re-craft scenes to fit the vagaries and demands of on-set work.
Yes. Originally, Stefan didn't have a tattoo, but after the screenwriters saw it, they wrote it in as a part of the role.
He was born in 1930. His first film was an uncredited role in "Revenge of the Creature" (1955).
they started making movies around 1895
Screenwriters Brigade - 2013 was released on: USA: 14 September 2013 (Gulf Coast Film & Video Festival)
Yes
They rushed because there are alot more details in the Twilight Saga books, and the producers and screenwriters of the Movies cannot put every single little detail and line from the books into the movies!
Probably because Male and female actors and actresses are restricted to particular types of gender specific role but screenwriters, directors and producers are not gender specific.
Working screenwriters write every day.
Yes. Originally, Stefan didn't have a tattoo, but after the screenwriters saw it, they wrote it in as a part of the role.
No, neither character is real. They are both works of fiction created by screenwriters to be turned into horror movies.
He was born in 1930. His first film was an uncredited role in "Revenge of the Creature" (1955).
Making Movies - song - was created in 1980.
Making Movies was created on 1980-10-17.
they started making movies around 1895
Yes. Richard Harris, who played Dumbledore in the first two movies, died after making The Chamber of Secrets. So, Michael Gambon took over the role.
Silvertongue Screenwriters - 2011 was released on: USA: 11 December 2011 (Miami, Florida)
Yes. They ran a lot of major changes past her and she told them things they couldn't cut (such as Kreacher in the fifth film).