In the movie, Usagi and Mamoru are hot-hot lovers, Chibiusa is friends with Rei and the girls, and she isn't Black Lady. The time that satisfies these conditions is around episodes 78-81 of "Sailor Moon R." However, around episode 80, the girls are shown wearing winter clothes, whereas they're
wearing spring clothes in the movies... In the last episode of "Sailor Moon R," during the period between defeating the Black Moon and Chibiusa's return to the future, there should be no contradiction, but what do you think?
So basically... If you wanted to watch everything in its in-universe chronological order, you'd have to stop Final Battle after Wiseman is defeated, then go watch the R movie, then watch the last minute or so of Final Battle where Rini goes back to the future.
wearing spring clothes in the movies... In the last episode of "Sailor Moon R," during the period between defeating the Black Moon and Chibiusa's return to the future, there should be no contradiction, but what do you think?
So basically... If you wanted to watch everything in its in-universe chronological order, you'd have to stop Final Battle after Wiseman is defeated, then go watch the R movie, then watch the last minute or so of Final Battle where Rini goes back to the future.