You may think you're strong on earth, but just how strong would you be in Marvel's Cinematic Universe? Would you be worthy enough to lift Thor's hammer?

Well, these are the questions that many Marvel fans might ask themselves -- or maybe just fans of the hunky Chris Hemsworth a.k.a. People's Sexiest Man Alive (November), who plays the muscular Thor for a fourth time in "Avengers: Age of Ultron."

While Hemsworth said in an earlier featurette that he was thrilled with his costume's adjustment -- he lost the sleeves, which made him "too hot" and "uncomfortable" (and in turn shows off his guns, no complaints there!)

The metal work involved in his costume looks fierce, but it's all about the hammer.

The Guardian touched upon the power behind "Thor's hammer Mjölnir, in the Odyssey it is Odysseus's bow and in legend it is King Arthur's sword Excalibur." 

During "Avengers 2" in what The Guardian calls "a moment of subtle comedy, there is "a rare moment of downtime" where the superheroes try to lift Thor's hammer, Mjölnir - which, "according to Norse lore, nobody but Thor can do."

How the superheroes' attempts unfold is pretty comical.

"Iron Man, Hawkeye and co all strain and grunt unsuccessfully, but when Captain America tries, Mjölnir squeaks and budges just a little, and the confident smile on Thor's face slips for a moment," The Guardian adds. "When Captain America gives up, the smile returns, this time in the register of relief."

"The mighty Mjölnir bestows upon its wielder the power to level mountains and rule Asgard, but as Thor tells his colleagues, only the 'worthy' can lift it. In this respect, Mjölnir is an example of one of the world's oldest story tropes - the weapon of awesome power only a chosen one can wield."

"The Avengers: Age of Ultron" cast includes: Robert Downey Jr. as Iron Man, Mark Ruffalo as Hulk, Chris Evans as Captain America, Scarlett Johansson as Black Widow and Jeremy Renner as Hawkeye, with the additional support of Don Cheadle as James Rhodes/War Machine, Cobie Smulders as Agent Maria Hill, Stellan Skarsgård as Erik Selvig and Samuel L. Jackson as Nick Fury.

"The team must reassemble to defeat James Spader as Ultron, a terrifying technological villain hell-bent on human extinction. Along the way, they confront two mysterious and powerful newcomers, Pietro Maximoff, played by Aaron Taylor-Johnson, and Wanda Maximoff, played by Elizabeth Olsen and meet an old friend in a new form when Paul Bettany becomes Vision."

Check out "Avengers: Age of Ultron's" extended clip, "Lifting Thor's Hammer." Do you think you'd be able to do it, or better yet be "worthy" of lifting it?