How do you punctuate movie titles?
Boldface, italics, or underlined.
When mentioning a work of art, literature, or theater, here are the guidelines:
The title of a book, film, play or television series is italicised , boldfaced , or as a last resort, underlined.
The title of a short story, TV episode, or comparably minor work (including the title of a painting; sometimes paintings, drawings or etchings are part of a larger work) are put in "quotation marks."
Avoid putting two colons in a title, like Star Wars: Episode One: The Phantom Menace. That was the least of that film's problems, but it was certainly among them.