Other mistake: During the lightspeed skipping sequence, there is a scene where two Millennium Falcons appear on screen.
Suggested correction: These are mirror spires, a reflective surface. It's not a mistake.
It was confirmed to be a mistake in rendering. The "mirror spires" was made up to try and excuse the error.
No, the director actually said that this was a planet that shows reflections. Because you can see the towers reflected.
Revealing mistake: The film was rushed to theaters, leaving a few mistakes which Universal fixed. In the original cut, toward the end, Judi Dench's human hand is visible, complete with her wedding ring. This was fixed for the re-release.
Continuity mistake: When the Ancient One is about to give Bruce the Time Stone, in the shot where Bruce says "So he must have done it for a reason", the Ancient One is holding the Time Stone, the two fingers she is holding the stone with are in a curved position. It then cuts to a different angle, where the two fingers are in a more straightened position. (01:26:00)
Other mistake: When the characters go to the Himalayas, the whole time, like for 20 mins, including the confrontation scene, they are all wearing casual, short-sleeved shirts. You can see Mr. Burnish's henchmen wearing winter clothing, while the main characters don't freeze to death. They only start getting cold after a long time.
Continuity mistake: While fighting in the zeppelin, Dwayne Johnson falls to the right of a manhole. When the angle changes he is on the lower part of it.
Continuity mistake: When Dumbo is born, Medici is taking a bath. The amount of foam on his arm changes between the front and back shots.
Continuity mistake: When the movie ends and Aladdin exits the palace the passers by behind are not continuous between shots, check the woman in a salmon coloured sari, for example, who walks by twice.
Continuity mistake: When Elton and John Reid are kissing in the cupboard John's hand keeps changing between shots. John's hand rolls down Elton's chest, then the next shot it's on Elton's cheek, the next shot he takes his hand away, then the next shot his hand is by Elton's mouth and Elton pretends to bite John's thumb.
Continuity mistake: When Billy finally finds his mom and talks to her in front of her apartment, the door behind her changes from (almost) fully closed to much more open, to an intermediate state, and fully closed again at the end. (01:25:30 - 01:28:00)
Continuity mistake: At the start of the film, Eggman is chasing Sonic through the streets and there is a shot of the city skyline down a street behind Sonic as he makes a turn. The camera then cuts to inside Eggman's ship to a close up him with the city skyline still behind him, only now it's different buildings behind Eggman. (00:01:00)
Continuity mistake: When Buzz is first put on the prize board at the carnival game, Ducky and Bunny are hanging further down and Ducky is pretty much level with Buzz. Later on, they are hanging higher up and Ducky struggles to reach Buzz when trying to kick him. (00:34:22 - 00:43:00)
Continuity mistake: En route from the front door of Wayne's mansion to the table in the Batcave, the pile of pizza boxes in Alfred and then in Mike's hands continues to change in size and number: at first the pizza girl delivers 11 boxes, Mike slams on the table just 8, but he brought down the stairs twice that amount (without counting through freeze-frame the precise numbers, it's simply obvious at first glance that the pile is bigger in some shots and the pizzas themselves are pictured of inconsistent size).
Revealing mistake: A basket with fireworks catches fire. When the basket is flung into the air, they forgot to add the CGI for it, so it's not burning at all. But the effect is there in the second shot, when Aladdin bicycle kicks it away. (00:06:00)