Best Buy offers the LEGO Justice League: Cosmic Clash Blu-ray Combo Pack for $7.99. (Amazon has it for the same price with free Prime shipping, although it's temporarily out of stock.) Opt for in-store pickup to dodge the $3.99 shipping charge. That's the lowest price we could find by $6. The set includes the Blu-ray, DVD, and HD versions of the film, and a LEGO mini-figure.