The teen musical BEST SUMMER EVER has a plot we’ve seen before – and the film, to its credit, knows that and winks at it. Yet it exists in a world where waitstaff, cops, sportscasters, camp counselors, teammates and cheerleaders have disabilities alongside people who don’t. No one gawks or wonders aloud about what they can and can’t do. This casual inclusiveness gives the story its surprising warmth and camaraderie. The film is at its most compelling during its many original musical numbers, which are staged and shot with zest and precision. The film’s conflict stems from universal angst brought about by the high-school pecking order and parental expectations, but it creates such an inclusive, adaptive, accepting world that viewers might forgive any narrative shortcomings because it’s so infectiously joyous.