Large size newspapers (although some now make small versions as well for convenience), use more text and more formal language, aimed at more educated people
The crime being committed in Wolf of Wall Street is corporate crime, and it happens more often than people think due to it not always being shown in the media as it's not interesting enough
The portrayal of the crime in Wolf of Wall Street is not as realistic as it could be as someone committing large-scale corporate crime would likely be more careful to avoid being caught
The portrayal of crime in Legend may be glamorised to make it more entertaining for an audience to watch as well as not show all of the crime committed as some of it may be too gruesome
The crime being committed in American Gangster is organised crime and not all organised crime is known about, and not all of it can be reported due to the threat of organised crime
American Gangster does show some realism, however the crime is glamorised for entertainment and some gangsters would likely be more careful than portrayed