“Summer Night” (*** out of four) was a fine coming-of-age story about various relationships between numerous young people (Analeigh Tipton, Lana Condor, Victoria Justice, Justin Chatwin, and others) and their entanglements and complications in a small town. Not much plot per se but has so much lively music, good character observations, and (at times) funny dialogue that it’s a pleasant watch just the same. A nicely done directorial debut from noted character actor Joseph Cross which brings back memories of 2013’s “The Spectacular Now.”