Thumb Score: +17 Amazon [amazon.com] has Back to the Future: The Complete Trilogy (DVD) for $9.99. Shipping is free with Prime or on $35+ orders. amazon.com/dp/B08DGBF2XH [amazon.com] Walmart [walmart.com] also has Back to the Future: The Complete Trilogy (DVD) for $9.99. Shipping is free w/ Walmart+ (30-day trial for $1 [walmart.com]) or on orders of…