Continuity mistake: Kenshin loses his sword battling with the guards at the beginning of the movie. The sword gets stuck almost horizontally in a tree stump. Then one of the guards grabs it as he rides by with his horse, but the katana is now stuck in the tree at a sharper angle which makes it possible to reach for it and grab it on the fly. (00:02:35)
Continuity mistake: When Benkei climbs the sewer ladder and disappears into the light, Donatello is touching the ladder in the first shot, in fact he puts both hands on deliberately, but he's not even touching it in the second. (01:28:35)
Continuity mistake: In the baffling phase when Whit takes exception to the killing if it's done by guns and Walker just throws him with the others, Elias Koteas moves his gun from the left to the right hand when Stuart Wilson calls for Niles, but in the next shot the gun is much lower. (01:18:15)
Continuity mistake: When the guard tells Norinaga about his honor guards; "They're coming! They're behind the wagon!", Norinaga's hand placement changes between shot and reverse. (00:28:15)
Answer: I don't belive it has a set name, other than giggle or laughter it is just a generic sound. Much like the Wilhelm, which I think fans named after hearing it in a lot of movies.
NoWhereMan
Ben Burtt, a sound designer who used the scream, is the one credited for naming it the Wilhelm scream. It's named after the character Private Wilhelm in the film "The Charge at Feather River" when the scream is dubbed in after he's shot.
Bishop73