Corrected entry: After being transported to the 1980s, the guys have possession of things which they did not take into the hot tub with them. Nick has his cell phone, Jacob has his snowboard, Lou has his backpack, and they are all wearing clothing that they brought with them when they go skiing.ThatOneGuy
Corrected entry: The delay in the group's realization that they have traveled through time is implausible. Someone in the group would have encountered a mirror before Lou finally does shortly after Phil shows up with their luggage. Additionally, on their way to go skiing, they would have noticed that the lodge's rundown condition would have improved significantly overnight.ThatOneGuy
Corrected entry: At the end of the movie, after Lou has altered history, we see the video for "Home Sweet Home" by Motley Crue. "Home Sweet Home" was on the album "Theatre of Pain" which was released in 1985. The video had already been released by the events of the movie in 1986.
Corrected entry: When John Cusack's character goes into the basement to chat to his Nephew, he says "c'mon you're 20 years old, get out and live life" (or something like that) when they go back in time his nephew is conceived in 1986 meaning that the present must be 2006 but when they get back into the tub to travel back to the present, the readout on the tub says 2010, where the nephew would now be 24 if he had been conceived in 1986.Quinny
Corrected entry: At the start, the Bellhop acts like he doesn't know the gang, and they act like they've never met him. Yet, we later learn that they had some significant run-ins with this guy many times and are regulars at this place, to the point that in the new future the guy is almost a friend of theirs. Plus, the gang is surprised at his one arm, yet they knew about it and how it happened as they saw it. The only thing affected by what they changed is that he had it reattached.
Corrected entry: When they are in the year 1986, a man is seen with a cell phone. The first cell phone wasn't released until 1989 by Motorola.