If you want an original song to be in a movie, how would you put that in the movie script? Do you just write the lyrics in? Can you show an example?
I know someone who does this and says it's MUSIC CUE or MUSIC UP if the song has already been selected.
The Screenwriter’s Bible (apparently available for $1.99 on Amazon, used) suggests you insert them.
McKAY “Well, you take the high road And I’ll take the low road, And I’ll be in Scotland before you.”
Alternatively you can use slashes instead of the line breaks - may save space occasionally:
McKAY “Well, you take the high road/and I’ll take the low road/and I’ll be in Scotland before you.”
This is specifically for an original song, as the lyrics are also in-effect part of the screenplay as there are no licensing issues.