While “Knock Down the House” provided us with some fascinating portraits that might have interested even those averse to politics, “To the End” is a little less precise. Over the span of four years, Lears introduces us to Varshini Prakash, Alexandra Rojas and Rhiana Gunn-Wright, and all bring evident passion to their endeavors as climate activists. But none quite centers the screen as Ocasio-Cortez can, which leaves us with a diffuse and familiar narrative about advocacy in general.

Of course, eco-activism is a subject that can support any number of documentaries, as long as it remains necessary. (And as this movie makes abundantly clear, movies like this will be needed indefinitely.) It helps that Lear contextualizes each participant’s personal connection to the cause, thoughtfully if rapidly situating it within historic, economic, and political frameworks.