yes it is.
No. The word "movie" is not underlined.
A scientific name is underlined when written by hand. However, when typed, a scientific name is italicized instead of being underlined.
A movie is supposed to be underlined
When writing the name of a textbook, it is underlined. This is because it is a book.
Only if it is in a title or name of something such as Black Beauty. But if it is the name of a horse not in a movie or you do not mean the title then no.
No they should not.
The common name for the underlined information in an article is the hyperlink or link. It is typically highlighted in a different color or underlined to signify that it can be clicked on to navigate to another webpage.
No. some of his original paintings were never underlined. It was later that he underlined his name. I have an original Picasso that was not underlined. but he did always capitalize his P. If you can find early Picasso's that were not underlined they can easily be worth many millions. Good luck and best wishes.
No, it is underlined, just like a book title.
To be technically correct, "A Christmas Carol" is put in quotation marks (as I did).
Headline
Scientific names are composed of the GENUS name, which is capitalized, and the species name, which is always lower case. The entire scientific name is ALWAYS underlined or italicized.