 Because each country's standard paper size is difficult to obtain in the other country, British writers often send an electronic copy to American producers, or crop the A4 size to US letter.A British script may be bound by a single brad at the top left hand side of the page, making flicking through the paper easier during script meetings.Screenplays are usually bound with a light card stock cover and back page, often showing the logo of the production company or agency submitting the script, covers are there to protect the script during handling which can reduce the strength of the paper.