'Avengers: Endgame' Visual FX Team Explains Sling Rings

Comicbook.com reports 'Avengers: Endgame' had plenty of fan service to offer! Spoilers ahead.

When Doctor Strange used the sling ring to transport the dusted heroes to an epic battle with Thanos, it was quite a spectacle!

Weta Digital was responsible for these visual effects, which had to be rebuilt from scratch for the film.

We wanted to make sure that they were instantly recognizable for people as being the same Doctor Strange sling ring portals from the earlier movies.