Target has Joker (4K Ultra HD + Blu-ray + Digital) on sale for $20 or $19 w/ Target RedCard. Select free store pickup where stock permits. Shipping is free with RedCard or on $35+ orders.
Alternatively, Target has Joker + James Bond 007: Casino Royale (2006) + James Bond 007: Skyfall (4K Ultra HD + Blu-ray + Digital) on sale for $39.99 or $37.99 w/ Target RedCard after instructions below. Shipping is free or select free store pickup where available.
Something to consider if interested, this is part of B2G1 free. Add Joker in 4K along with Bond: Casino Royale[target.com] 4K pre-order & Bond: Skyfall[target.com] 4K pre-order for $20 each. Your total for all 3 should be $37.99 + FS after REDcard ($12.66 per 4K)
Amazon matched the $20 price (shipping is free w/ prime):