Continuity: Near the beginning of the film where Howard Hughes flight tests the silver monoplane (the H-1), the close up shots show an open cockpit while the longer shots show a closed cockpit.

Continuity: In the dining scene where Howard Hughes' girlfriend has a sundae sitting in front of her, the cherry which is on top of the sundae changes positions in several different shots. First, the stem is turned towards the left, a few shots later, it is turned towards the right, then left again. It also shows up in the bottom of the dish, then in the next shot, it is back on top of the sundae.

Factual error: When Hughes flies the open cockpit H-1 at over 350mph he isn't wearing goggles. There isn't a sign of any wind at all in the cockpit. Even with a windscreen, the wind would cause your eyes to water well before 350mph.

Continuity: In the final scene of the movie, as Hughes walks forward with Gardner, they stop walking in the head on shot. When the shot changes to a side profile, they are still walking forward.

Continuity: When Howard Hughes is having a shave with Katharine Hepburn, he has shaving foam left on his chin from the shave. In the next shot when Hughes goes to wash his face, all the foam has disappeared.

Audio problem: Towards the end of the scene where L.B. Mayer is dismissing Howard's request for some cameras, the audio does not match at all with the way his lips are moving.

Continuity: While having dinner at Kate's house, Howard Hughes yells out a comment about money, and after that the roses on the table have totally changed position from before.

Revealing: Early in the film, when Hughes and another guy are walking past one of the replica WW1 aircraft used for the "Hell's Angel" scenes, you can see the ends of the cylinders of the modern air cooled engines they used to power it. The original aircraft (SE-5A) used a water cooled V8 which wouldn't have been visible.

Continuity: Immediately after the screening of "Hell's Angels", Noah Dietrich (seated right behind Hughes) begins applauding, and others join in. In the next shot of Dietrich, he begins applauding again.

Deliberate "mistake": During the flight Hughes takes with Katherine Hepburn, they talk to each other in normal, conversational voices. A twin-piston-engined aircraft of that vintage (or any vintage for that matter) is LOUD. We should be able to hear roaring engines, and the two should have to shout at each other to be heard.

Revealing: During the filming of 'Hell's Angels' Howard gets the idea to build a single wing mono plane. He and another take an axe and smash the support holding up the upper wing. If you notice the upper wing is already broken, hinged and a very poor covering has been laid over the joint. It is very obvious and noticeable in a few shots leading up to this.

Continuity: During the presentation, the position of the Hercules doesn't match in the close and wide shots. Submitted by Sacha

Factual error: In the 1940ish Connecticut scenes of the Hepburn family, one member was taking movies with a Bolex reflex movie camera not manufactured until the late 1950s.

Continuity: When Hughes is about to fly (and burn) in the plane, the plane is standing on a very long and straight runway. The shot cuts to Hughes inside the cockpit, and the runway behind him is a curve turning left. Submitted by Sacha

Continuity: When Howard asks L.B. Mayer to loan two cameras, we first see Mayer and his associates from Howard's viewpoint as he is approaching them, and Mayer is standing with the bar on his left. In the next shot Howard greets him, and the men in the group have changed places, with Mayer now facing the other direction and now the bar is on his right.

Deliberate "mistake": The fuel gauge for the speed test is grossly exaggerated for effect. They just got done telling him that there is minimal fuel for weight considerations. Just after takeoff, it reads about 40, which is half full. After the first run it's down around 30. Going into the third run it's near 10. Given the H-1's range of 2,490 miles, even pushing the engine to it's limits shouldn't drain that much fuel that quickly nor should the engine stall at 10. Submitted by zephalis

Visible crew/equipment: Lighting screens are reflected in Hepburn's glasses while she's in the car heading to the set. Submitted by Sacha

Continuity: A drop of soap on the lower right side of the sink when Hughes cuts himself appears and disappears depending on the shot. Submitted by Sacha

Continuity: The amount of fog during the Hercules presentation changes abruptly in barely half a second. Submitted by Sacha

Continuity: When Ava Gardner smacks Hughes he falls down, knocking some flowers down to the floor, covering part of the first brick of the fireplace. When the shot changes, the brick is immaculate and the flowers are nowhere to be seen. Submitted by Sacha