Other mistake: When Ash and friends are first seen walking up stairs, Pikachu's tail is briefly mistakenly coloured brown with a yellow base instead of yellow with a brown base. (00:15:13)
Directed by: Kunihiko Yuyama, Michael Haigney
Starring: Eric Stuart, Veronica Taylor, Rachael Lillis, Madeleine Blaustein
Other mistake: When Ash and friends are first seen walking up stairs, Pikachu's tail is briefly mistakenly coloured brown with a yellow base instead of yellow with a brown base. (00:15:13)

Revealing mistake: As Lawrence III walks up the stairs to his console, he clips through them in the process. (00:01:43)
Question: This is supposed to take place roughly around the episode Charizard Chills Out (either before or after). Tracey meets Professor Oak, but in episode "The Underground Round-up" he says "I can't wait to get to Pallet Town either Ash, to meet Professor Oak" like the movie never actually took place. Also, Ash could have given Professor Oak the GS ball at that time. When really does the movie take place? As Ash still has his Lapras, which he releases in the previous episode.