Back to the Future: The Ultimate Trilogy - 4K Ultra HD + Blu-ray + Digital, 7 discs (Amazon ASIN B0D1CP8LWH)

All three Back to the Future movies in one box makes for an easy family movie night, and the set is rated PG. As of Saturday evening, Amazon has the 7-disc Ultimate Trilogy with 4K, Blu-ray and digital copies at $29.99, down from its typical price of $48.69, shipped and sold by Amazon.com. The regular Blu-ray discs are in the box too, so a standard Blu-ray player will do if you haven't gone 4K yet. Two things to know: shipping is free with Prime or on orders over $35, so it's worth pairing with something else on your list, and the listing says the digital copies are subject to expiration. Prices move, so confirm it in your cart before you check out.