Continuity: Near the end of the final fight scene, Tom Cruise has some blood coming out of his nose... That blood disappears and returns several time during that scene, and it's clearly visible with all those close ups of him.

Audio problem: When Luther walks from the helicopter he steps in some sheep droppings. His last step (but not the second to last.) makes a slushy sound. But sheep droppings are too dry to make such a sound.

Factual error: The car chase between Ethan and Nyah is supposed to take place in Spain involving Spanish cars (plate's colour and the way numbers and letters are represented follows the Spanish code), but a real Spanish plate should have numbers and letters displayed as follows '1234 ABC' or 'AB- 1234-AB'.

Continuity: At the beginning when Ethan is getting briefed of his mission with the sunglasses, his point of view shot through the glasses shows the landscape moving across from right to left, yet on the shots looking at him he isn't turning around or moving his head at all.

Visible crew/equipment: As Tom Cruise is listening to his mission via the sunglasses at the beginning of the film, the camera and several crew members are reflected in the right lens as the shot pans around him.

Plot hole: While Tom Cruise is entering the inoculation chamber at BioCyte lab, he is shown entering through a airlock. While he does this, both doors can be seen open. Doesn't this defeat the purpose of having an airlock?

Continuity: During the end bike chase scene, Ethan Hunt has just used his mirror to fire his beretta at Sean Ambrose, he then re-holsters the weapon and swerves round 2 cars. If you play the movie slowly you can see that after he re-holsters the gun it is in his left hand while he is holding onto the handlebars. Its a quick shot so you have to look carefully.

Continuity: If the final fight scene between Hunt and Ambrose, Ambrose cuts Hunt's face and back with his knife. But in the scene when the knife is close to his eye, you get a close up of it and there is no blood on the knife blade. It is perfectly clean.

Continuity: When Tom Cruise is in the final fight scene with Dougray Scott, he performs a 'spinning jump kick'. When he lands, he is shown landing with his right foot in one shot, his left foot in the next one, and back to his right foot in the final shot.

Continuity: When Ethan makes the spectacular leap during the rock climbing scene, you see him land vertically, as in he landed in a standing position, clinging to a rock safely, yet when it immediately cuts to another angle, he is already sliding down to the edge.

Continuity: In the shots after Tom Cruise made the white smoke-like stuff, it shows the accident in the background shot of Tom, but the next time, it's miraculously cleaned up.

Factual error: When Luther is in the helicopter in the final scene on his way to Nyah he says 'distance 2K' when he is over central Sydney. Nyah is at the coast, which is approximately 15 km from Sydney center.

Continuity: At the racetrack when the girl has the binoculars up and talking to Tom Cruise her hair is behind her ear, then down, then behind her ear again.

Continuity: Near the start of the car chase at the end, a white car loses a hub cap in extreme close-up, but when it wipes out completely and flips over a few seconds later all its hub caps are still on.

Plot hole: The virus ravaged Nyah is making her way to a cliff to kill herself when Ethan sends his buddies to save her. There is no way that the flight to her location would have taken that long unless John Polson decided to take Ving Rhames for a guided tour of the Sydney skyline first just in case he missed any of it. It's just a couple of minutes flight time for a helicopter at full throttle.

Continuity: When Sean removes his Etah-mask on the 747 his eyes change from Ethan's clear blue to his own dark. But there is no eye cover or contact lenses incorporated in the mask.

Continuity: After the car chase, when Nyah sits in Etahn's lap, the sun is on the left side of her face (and from the back right on Ethan). In the next clip Nyah's face is in shadow and the sun is from the front left on Ethan's face.

Continuity: In the first car chase, in the clip right after Nyah says '. you gotta catch me', you see the double yellow lines on the road. But in previous clips, and on the clip right after, the lines on the road are white. The clip with yellow lines are from another stretch of road.

Continuity: The agreed ransom at the start of the film is £37 million. Later this turns into 30 million pounds (though I may have got the share options bit a bit confused here). Then when the transfer is actually made, it has reduced to 30 million dollars.

Factual error: The aeroplane at the beginning of the film is a 747-400. You can tell because the wings had winglets when they showed the exterior view.  Well, a 747-400 only has a two man cockpit, there is no "sideways flying" flight engineer like in the movie.