As the premiere date of Avengers: Endgame creeps closer, fans are taking more extreme measures with every passing day to find out what exactly happens in the new film.

Jimmy Fallon, host of The Tonight Show, is no exception, though there's one significant different between him and the average Marvel fan: he has personal access to Mark Ruffalo.

When Ruffalo, who plays the Incredible Hulk, appeared on The Tonight Show to promote the new movie, Jimmy wasn't going to pass up his chance for a few Avengers spoilers, secured through any means necessary.

He did what any diehard fan would do and hooked Ruffalo up to a lie detector to ask him some questions.

Jimmy Grills Mark Ruffalo About Avengers: Endgame with a Lie Detector Test youtu.be

There was no stopping people from hulking out on Twitter!

Many wanted to see how Ruffalo's costar Tom Holland would react if hooked up to the polygraph...

Many social media users avoided the potentially spoiler-laden video like the plague!

There were also a few people who DOUBTED the polygraph test was real?!

With just over a month until the Avengers take one final stand against Thanos, excitement is building to a fever pitch. Marvel just released a new trailer for the movie and...wow.

Marvel Studios' Avengers: Endgame - Official Trailer youtu.be

Fans got pretty much everything they wanted from the clip.

Congratulations, Mark Ruffalo, it seems your lie detector test on national TV didn't reveal anything too harmful about the MCU. We'll see you on April 26!