What you are about to watch in this new BTS video from Avengers: Endgame is sure to leave you stunned and will definitely make you want to give actor Sean Gunn a big hug. Wondering why? Well, the Guardians of The Galaxy director James Gunn shared an amazing video featuring his brother Sean Gunn from the sets of Endgame where the latter is standing -in for Rocket's character. If you ever thought pulling off that motion capture role was any easier, think again and watch this video. Confused About Thor: Love and Thunder and Guardians Of The Galaxy Volume 3's Timeline in MCU? James Gunn Has the Answer.

In the video, we see Sean walking alongside the Avengers in a crooked position where he is using his arms to balance himself as walks in a stooped position. This system of motion capture has Gunn wearing a grey suit where through which he helps motion referencing for the animators. It is Gunn's actions that the animators use for Rocket's movements. We bet your mind just exploded hearing that and well, this video will sure have an added respect towards Gunn for his amazing work.

Check out the video here:

Sharing the video, Sean's proud brother wrote, "This is @seangunn doing motion reference for Rocket on set in #Endgame. Contrary to popular opinion, he’s not a stand-in as much of Rocket’s acting and facial expressions are Sean’s. And yes it’s hilarious every time."James Gunn’s Brother Sean Gunn to Join The Suicide Squad? The Actor Reveals the Truth.

The video is receiving loads of love from Marvel fans who can't help but appreciate Sean Gunn's massive efforts in making Rocket look so amazing on-screen. The video had several fans also showing concern for Gunn's health especially considering this posture would definitely affect his knees. It's amazing how the video may almost seem funny at the start, until you realise it's true importance.

(The above story first appeared on LatestLY on Jul 30, 2019 08:46 PM IST. For more news and updates on politics, world, sports, entertainment and lifestyle, log on to our website latestly.com).