X-Men: Days of Future Past

"[first words by older self in original timeline] The future: a dark, desolate world. A world of war, suffering, loss on both sides. Mutants, and the humans who dared to help them, fighting an enemy we cannot defeat. Are we destined down this path, destined to destroy ourselves like so many species before us? Or can we evolve fast enough to change ourselves... change our fate? Is the future truly set?"

"[last words by younger self in revised timeline] The past: a new and uncertain world. A world of endless possibilities and infinite outcomes. Countless choices define our fate: each choice, each moment, a ripple in the river of time. Enough ripples, and you change the tide... for the future is never truly set."

"His past. Our future."

"Every hero, every power will unite."

"The future begins."