Note: REVIEWS are NOT SCHOLARLY.
To do this:
In ProQuest, Alt-Press Watch, and Ethnic NewsWarch: On the "Advanced Search" page, scroll down to the "Document Type" option and select "Review"
In Academic Search Complete: Select "Entertainment Review" or "Film Review" as the Document Type.
In other databases: see what other filters they offer or just type in the keyword "review."
In the Holman Library One Search review is a source type you can refine by.