A game's 'usability' can overcome deficiencies in areas that are detrimental to film if not well executed. SR4 could have shitty jokes, dumb writing and dialogue, poor characterization...but if it's fun to drive cars, fly planes, use superpowers, etc., it can still be considered a good product.
It's out of line to say people are stupid for enjoying a film, though. But I thought the first Kick Ass was a poor film. It couldn't survive what I felt was lame comedy, hammy acting, and weak cinematography.