[Yes.](https://screenwriting.io/what-is-standard-screenplay-format/)
There are slight variations based on the type of screenplay (i.e. feature, dramatic teleplay, [multicamera sitcom](https://screenwriting.io/how-are-multicamera-tv-scripts-formatted/), etc) and writer preference, but there is most definitely a standard screenplay format, which includes a standard [font, spacing, indentations, and more](https://screenwriting.io/what-is-standard-screenplay-format/).
Examples of properly formatted screenplays can be found in the [johnaugust.com library](http://johnaugust.com/library).
Scriptwriting software such as [Final Draft](https://screenwriting.io/what-is-final-draft/), [Movie Magic](https://screenwriting.io/what-is-movie-magic-screenwriter/), [Celtx](https://screenwriting.io/what-is-celtx/), and others are designed to make it simple to write screenplays in standard format.
* [The Hollywood Standard](http://johnaugust.com/2007/hollywood-standard “The Hollywood Standard”)
* [Script formatting](http://johnaugust.com/2003/script-formatting “Script Formatting”)
* [Formatting and software](http://johnaugust.com/2003/formatting-and-software “Formatting and software”)
* [Scrip writing software](http://johnaugust.com/2003/script-writing-software “Script writing software”)