Amazon offers Prime members Rise of the Planet of the Apes on Blu-ray / DVD / Digital HD for $3.99 with free shipping. (Non-members can spend $35 to bag free shipping; otherwise, it adds $4.98.) That's tied with our mention from last December as the lowest total price we've seen. (It's a current best by $6.) This two-disc set includes a digital copy of the film.
Note: This item is currently out of stock, but it can be ordered for delivery when available.