That’s right, Joss Whedon’s hilarious and entertaining web series is now out on BluRay, showing the epic struggle of Dr Horrible against Captain Hammer, and poor Felicia Day stuck in the middle.  If you already own it on Dr. Horrible's Sing-Along Blog - Dr. Horrible's Sing-Along Blog, Acts 1, 2 & 3 or DVD, here’s why you might want to consider it:

Even if you’ve already watched or downloaded Dr. Horrible’s Sing-Along Blog, a number of bonus features might entice you. There are two commentary tracks: Harris, the three Whedons, Tancharoen, Day, and Fillion recorded a spirited track discussing the movie, and there’s also “Commentary! The Musical” in which they ignore the movie and sing about the writers’ strike and each other (e.g., Fillion sings “I’m Better than Neil”)–the songs aren’t as good as the Horrible songs, but it’s good silly fun. A 20-minute making-of discusses the cast, the recording sessions, and how the movie became a phenomenon, and 10 videos (a half-hour total) were recorded by fans who want to join the Evil League of Evil. And when’s the last time you wanted to pause the FBI warning? –David Horiuchi

On sale today for a miniscule $10, and definitely worth watching.