Jamie Lang “The Endless Trench,” Spain’s submission to the Best International Feature category of the 2021 Academy Awards, features standout performances from its two leads who spend nearly all of the film’s 148-minute runtime on screen together.A story of confinement and fear, “The Endless Trench” follows Spanish Academy Goya Award-winner Antonio de la Torre’s Higino as he escapes from Francoist soldiers at the onset of the Spanish Civil War.