Beyoncé fans turned her 'Renaissance' movie premiere into a concert ... singing and dancing in the theater aisles, making for one crazy fun scene.

Ya gotta see the videos from inside the London theater where fans got the first look at "Renaissance: A Film By Beyoncé" ... it looks like one of her tour stops.

The 'Mute Challenge' was also a staple of Beyoncé's recent "Renaissance" world tour ... so naturally, her fans brought it back while watching a movie about the tour.

Beyonce was in the house too ... though she wasn't wearing silver, as has been a theme and the source of some controversy ... pairing a black dress with her platinum blonde hair.

As we reported ... Taylor Swift flew across the pond to give Beyoncé her full support ... seemingly returning the favor after Beyoncé went to Taylor's "Eras" movie premiere.

Beyoncé also dropped a new song, "My House," coinciding with the movie release ... with fans noticing the track playing during the credits.