Crossword puzzle clue "it may be followed"

What you'll see if you watch "Raging Bull" followed by "Taxi Driver" followed by "The King of Comedy"?

Sign word that may be followed by an exclamation point

It may be followed by an extra point

You may be followed by it

They may be followed by trains

It may be followed by [sic]

It may be followed by a marching band performance

Declaration that may be followed by "So sue me"