Corrected entry: It's revealed in the third (and presumably real ending) that it was Wadsworth who is behind everything and invited all the guests to the house and get them all to kill off his informants depending which informant had some relation to the party guest. But it was Wadsworth himself that killed The Singing Telegram Girl and not Mr. Green. Shouldn't Wadsworth have realised that his plan failed when Mr. Green didn't kill anyone?
Corrected entry: In the third ending, why does Mr Green shoot Wadsworth? His boss and loads of the police were waiting just outside the door, they could have caught Wadsworth and arrested him. The whole purpose of having a 'plant' was to find out who Mr Boddy was and arrest him. Mr. Green actually took out his gun before Wadsworth goes to shoot him, so it can't just be self defence.
Corrected entry: When Wadsworth is doing the re-enactment in the dining room, you can see the kitchen cupboard is open (the one the cook fell out of). The cupboard is still open when Wadsworth stabs the piece of meat in the cupboard. Yet, when Wadsworth re-enacts the Cook falling out of the cupboard, the door is closed. Wadsworth couldn't have closed the door because he was inside the cupboard at the time and it would have been impossible for the door to have closed. (01:06:50 - 01:10:55)
Corrected entry: In the scene where Col. Mustard and Mr. Boddy get into a fight, we see Mr. Boddy step on Col. Mustard's foot and poke him in the eyes. But, later on, in that same scene, we see Col. Mustard wiping his bloody nose when Mr. Boddy didn't even touch his nose.
Corrected entry: At the beginning of the movie Mrs Ho says "Dinner will be ready at 7:30". In one scene, way after dinner, when the house is being searched, we see Mrs White and Wadsworth each standing at two seperate doors, and Wadsworth asks, "Do you want me to go in with you?" You will see that the grandfather clock between the doors reads 7:05.
Corrected entry: During Wadsworth's whodunit explanation, he details the motorists death when the doorbell rings and the evangelist interrupts. After they slam the door on him, Wadsworth continues by saying "the motorist switched off the electricity." The motorist is already dead, as Wadsworth just detailed.
Corrected entry: In the study, when Wadsworth says that Mr. Boddy is the one that's blackmailing everyone, Colonel Mustard and Mr. Boddy get in a fight. Mr. Boddy pokes Colonel Mustard in the eyes. You can tell that he stops his fingers right in front of Mustard's eyes. Less than a second later, Colonel Mustard falls over.
Corrected entry: When Mr Boddy suggests the guests all leave the house, he makes a pretty desperate escape attempt, leaving the group stood next to a bag full of weapons (which some of them may have known about) for at least half a minute. Depending on which ending you choose to believe there are a number of reasons why he might want to do this. It certainly made it seem as though he had something to hide or had realised his number was up. Later on in the film Wadsworth reenacts the entire evening and goes into quite meticulous detail about the order the guests arrived, where they sat, who said what etc. He also reveals his knowledge of the passages, implicating himself as a suspect. Yet he never mentions Mr Boddy's escape attempt. It turns out that no murders were comitted in this time. Wadsworth might realise this but the guests wouldn't. Considering he goes off at thousands of irrelevant tangents throughout the reenactment, you'd think something like that needed covering, if only for the benefit of misleading the guests to stop them realising that he (Wadsworth) is actually Mr Boddy. Also, there was plenty of time for Yvette to kill the Cook (even though the weapons hadn't been handed round yet, but that would've come out anyway).
Corrected entry: When Miss Scarlet and Prof. Plum are at the door, they never ring the bell. But Wadsworth goes to the door to greet them anyway. Wadsworth couldn't know they were outside because at the front of the house is the study on one side and the lounge on the other. There are no windows in the lounge and there is a window in the study but not facing the car park. The lightning and thunder blocked all sound of them parking so Wadsworth couldn't hear that either.
Corrected entry: What about the candle stick? After it falls over the butler's head, they all go back to the study and say "we still have these four weapons" or something like it [revolver, pipe, rope, wrench]. The knife is in the cook's back. So, what happened to the candle stick? Nobody picked it up?
Corrected entry: Another anecdote to Prof. Plum's and Mrs. Peacock's simultaneous disappearance from the kitchen. At the end of the movie (the one with three endings) the second ending says that Mrs. Peacock was missing when they found the dead cook. The third one states that Prof. Plum was missing when they found the cook dead. If that's true then how come neither Prof. Plum nor Mrs. Scarlet mentioned it when Wadsworth was going over the events of all murders. Also, since they were standing next to each other, wouldn't the both of them have noticed that the other one was going off to kill somebody?
Corrected entry: In the kitchen after they find the cook's body, Prof. Plum is quizzing Mrs. Peacock about when she dropped the knife. She is indecisive about whether it was before or after she fainted. She faints when Mr. Boddy falls out of the bathroom onto her which hasn't happened yet. (00:35:53 - 00:38:32)