Continuity mistake: During the jail breakout, when Jake tries to open the ORV's door, in the shot facing Francis he is holding the gun in his left hand as he tries to open the door for his brother with his right hand. In the next shot facing Jake just before shouts, "I don't have the handle, open the lock!" Francis's gloved left hand is empty, and next shot, the gun can be seen in his right hand. (00:01:45)
Continuity mistake: When Marty chases after Biff on the borrowed 'skateboard', Marty is wearing a dark grey belt and a red/blue print shirt under his red/beige jacket. However, when Marty is hanging on to the front of Biff's car as they turn a corner (and in another shot), Marty (stunt double) is wearing a light brown belt and solid tan shirt. (01:07:00)
Continuity mistake: When everyone is in the Library, you can see the matches in a cup on the left of the fireplace. When Professor Plum says, "Wait a minute, suppose that one of us is the murderer," you can also see that the matches are in a "V" shape. When Wadsworth walks towards them to pull the matches out, most of them are all leaning to the left side of the cup. As the movie goes on, when the cop gets locked up in the Library for the second time, the same amount of matches are in the holding cup as if Wadsworth did not pull them out and they are in a straight line. (Third time code 1:02:40). (00:44:25 - 00:45:05)
Continuity mistake: Near the end of the movie, when Parker and Hunt are on the bus going to the contest, you'll see that Parker's hair is in waves. But when she arrives at the studio, her hair is VERY curly. Its not likely that she had time to change her hairstyle THAT drastically if she was pressed for time as she very clearly was.
Continuity mistake: Towards the end of the film, during the chase scene between the newspaper boy and Lane, you can see the skis of the camera guy.
Continuity mistake: After Molly Ringwald does her trick, she puts the lipstick away twice. It has a shot of her putting it away from the front and then another one from the back.
Continuity mistake: When P.W. is escaping certain trouble somehow his handle bar comes off (with ribbons) a new one is replaced (without ribbons) - cool bike huh? But in the next scene the new handle has ribbons... (01:13:00)
Continuity mistake: During the storm of Lisa's creation, when Wyatt shouts to hang up the phone, Gary leans over Wyatt's arm and places the handset back onto the phone base. However, after Gary shouts, "What's going on?" the handset is still on the modem.
Continuity mistake: When Fletch and Stanwyk first meet and Stanwyk asks Fletch to come to his home and hear his proposal, Stanwyk is wearing a suit/tie on top but is wearing jeans on the bottom. In the next wide shot as they leave the beach, and again in the next scene as they arrive at Stanwyk's house, he is wearing suit pants. (00:04:50)
Suggested correction: Stanwyck is never wearing jeans in any of the scenes, he's always wearing matching suit pants.
Continuity mistake: When Scott is putting his books in his locker and is talking to Boof, he closes his locker. Then in the next shot, his locker is open. (00:34:30)
Continuity mistake: When Tina runs up the stairs and then falls through, she lands on a blanket but when she stands up, the blanket is gone.
Continuity mistake: Towards the end of the movie at the prom, Terry finally shows Rick that she's really a female. She exposes her breasts. Now obviously she's not wearing a bra. But in the next scene you can see she's wearing a lace one.
Continuity mistake: In the Italy scene after the visit to the Traveler's Cheque center, the Griswold's decide to go shopping with the $3000 they received. Rusty proclaims "Yeah Dad, we've been in these clothes a long time, I feel rank." Shortly after walking out of the store wearing their new clothes it changes to the scene right before they see Ellen on the billboard, and they are back in their old rank clothes.
Continuity mistake: After the grenade sets off the box of grenades, and the subsequent explosions demolish the building, Millbarge says "I'll get the horse." Trouble is, throughout all of the gunfire and the explosions, there is no sign of the horse; it would have run off somewhere. When he gets the horse, it's tied up right next to the now demolished building. It would have been killed by the gunfire and/or the explosions.
Continuity mistake: When the Care Bears boat begins to be pulled into the whirlpool, made by the evil spirit fish, one of the bears grabs a rope and sends a special star into the sky to help them, attached to the rope. The bear then picks the end of the rope up, and begins to tie it to the mast. In the next shot you can see the end of the rope still laying on the floor again, unattatched to the mast, the in the next shot it's back on the mast again.
Continuity mistake: When Jack, Joan and the Jewel are trying to jump on the moving train, Joan is wearing slip-on shoes, however once she has jumped onto the train and falls over the side her shoes have changed to buckle sandals.
Continuity mistake: When John Cusack is getting ready for his date with Daphne Zuniga, he unzips his trousers to tuck in his shirt twice.
Continuity mistake: Dabney Coleman is chasing Tom Hanks and Lori Singer into the Senate Office Building and in one shot has his flip-up shades on and the next shot they're gone. All in an impossible split second.
Continuity mistake: Check out the person in the back seat of the car behind Susan Sarandon who's not supposed to be there. I think he taps her on the shoulder.
Continuity mistake: In the scene where everyone is going to the Tanning Invitational, Chris grabs two Hawaiian Lei's and a straw hat from a girl at the door. He puts a blue lei on Mitch and holds on to the red one and the hat. The shot switches to just Chris and when it goes back to Mitch he has on the red lei. Back to Chris again who talks a little more then reaches over and puts the hat on Mitch's head, who is again wearing the blue lei.