In the Advanced search in Primo, type in Feature Films and limit to Subject is (exact) ...
Feature films are also broken down into decades (ex. Feature films--2011-2020) and by country (ex. Feature films--China)
If you are looking for a specific genre, use that instead of the broader Feature Films in a subject search. Some to choose from:
Animated films; Animal films; Bible films; Biographical films; Children's films; Comedy films; Detective and mystery films; Fantasy films; Foreign films; Gangster films; Horror films; Melodrama; Musical films; Religious films; Romantic comedy films; Science fiction films; Sports films; Spy films; Thrillers; War films; Western films; Zombie films