In life, there are some mysteries that can never be solved. Why does chocolate taste better with peanut butter? Are there aliens living among us? Why is the sky blue? But if you're wondering why you should enter our brand new "Sherlock Holmes: A Game of Shadows" giveaway, the answer is quite simple: Because it's free and it's awesome.

Getting great home entertainment has never been so elementary.

If you still aren't convinced by this empirical evidence, though, here are some more facts for you. "Sherlock Holmes: A Game of Shadows" features the return of Robert Downey Jr. as the world's most famous (and brilliant) detective. This time around, he and his devoted life partner Watson (Jude Law) are trying to prevent the evil mastermind Professor Moriarty (Jared Harris) from starting World War I decades ahead of schedule.

And now we're going to give two lucky fans free copies of the "Sherlock Holmes: A Game of Shadows" Blu-ray/DVD combo pack right on schedule, as the film is set to hit stores on Tuesday. Best of all, there's no crazy detective work necessary; simply sign up and wait.

Now that's a master plan even Holmes himself would have to admire.

To enter, just shoot us an email at NextMovie@MTV.com and include your name, address, birthdate and be sure to copy and paste the following statement:

"By sending this email, I accept and agree to: (1) the Official Rules of the 'Sherlock Holmes: A Game of Shadows' Blu-ray Giveaway and (2) MTV Networks’, a division of Viacom International Inc., Nextmovie.com Terms of Use and Privacy Policy."

The contest runs from now until 2 p.m. ET on Thursday, June 14, 2012. Entrants must be at least 13 years old and reside in the U.S. Click here for complete rules and further details.

As an added bonus, all entrants will be signed up for the fun and useful UpNext newsletter. As an UpNext subscriber, you'll receive daily updates on the hottest releases, events and merch from the world of movies.