Amazon with muboutletstore has the Universal 10-Film Sci-Fi Collection (Blu-ray) on sale for $20 with free shipping on $25+ or with Prime. Movies include:

• 12 Monkeys
• Hellboy II: Golden Army
• Lucy
• Oblivion
• Pacific Rim 2
• Pitch Black
• Repo Men
• Serenity
• Seventh Son
• Waterworld