Continuity mistake: The blood that was on Leonard's right cuff disappeared and re-appeared a couple times. When he was cutting the bloody suit, the blood on his cuff was gone. When Leonard looked into the briefcase, the blood on his right cuff re-appeared, but was no longer there when he was sewing the suit's sleeve (or thereafter). (00:31:38 - 00:32:40)
Continuity mistake: Leonard washed his hands and some of the blood on his shirt cuffs/sleeves got wet and diluted, but his cuffs/sleeves were dry when he walked out of the room. (00:28:40 - 00:29:05)
Continuity mistake: Francis pistol-whipped Leonard and - although there initially was no red mark - a red mark could be seen when Leonard attended to Richie's wound. Not long afterwards, the red mark was gone (but should have still been there). (00:21:35 - 00:35:06)
