: A .part5.rar file is only a fraction of the total data. You cannot open or extract the movie unless you have all the other parts (Part 1, Part 2, etc.) in the same folder.

: Once you have all parts, you would use a program like WinRAR or 7-Zip to "Extract" the contents, which would result in a video file (likely an .mkv or .mp4 ), not a text document.

If you are looking for a of the movie instead of the file itself, you can find those on dedicated screenplay sites or subtitle databases.