Audio problem: When in the RV as the couples arrive at the RV park, Alice says, "Oh, this looks nice, don't you think, honey?", to which Frank replies, "Yep, pool and everything, the works." Frank is speaking with Roger's voice.
Audio problem: In the scene just before the engineer falls from the train, all the main characters are gathered in the governor's car. Charles Bronson is pouring alcohol from a decanter. The "glug, glug" sound of pouring begins before the actual pouring starts.