One Piece Film: Red (camrip) File

Or simply:

Alternatively, if you are looking for a more formal or complete article title, it could be: One Piece Film: Red (CAMRIP)

The proper article for the given text would be: Or simply: Alternatively, if you are looking for

However, typically when writing an article title or a reference, the most proper format would include the title of the film followed by any relevant descriptors in parentheses: Or simply: Alternatively