Bad analysis wrote about the sources of those quotes you read on the cover of the DVD, and how misleading they are.

Here’s an example:

“An ad for [Norbit] has the following blurb:

“Eddie Murphy’s comic skills are immense.”
―Michael Wilmington, CHICAGO TRIBUNE

If you suspect that some context is missing, you’re right:

Murphy’s comic skills are immense, and “Dreamgirls” shows he’s a fine straight dramatic actor too. So why does he want to make these huge, belching spectaculars, movies…swollen, monstrous and full of hot air…? “Norbit” makes you long for the days of “Beverly Hills Cop,” when Murphy was lighter on his feet, and his movies were too.”

You can find more of them at Fallacy files.