Continuity mistake: When Sam jumps out of the plane with his parachute, you can see the money bag he is holding has a "$" sign on it. But when we see Sam falling in the next shot, the "$" sign is missing.
Continuity mistake: When Sam falls out of the plane after Bugs pulled the cord, Sam panics and he is drops his guns in the process. But when Sam tells Bugs he is taking over the plane, his guns have suddenly re-appeared.
Continuity mistake: When Bugs tells Sam he's going to radio the authorities, he takes his book along and on the front cover it reads "Learn to Fly." But when Sam goes to retrieve the book after Bugs throws it out of the open door, the wording is missing.
Continuity mistake: When Sam threatens to blast Bugs' head off with his gun, Bugs has his right hand on the pages of the "Learn to Fly" manual he is reading. In the next shot, he has now his hand on the book.
Continuity mistake: When Sam discovers that the plane is going to crash into earth, you can see Bugs is beside him in the chair reading a "Learn to Fly" manual. But when Sam goes to the cockpit window, look at the chair and you can see Bugs has gone.
Continuity mistake: When Bugs steers the plane away from the moon, you can see outside of the window it is outer space. But when we see Sam in the plane's tail in the next shot, it is now clear blue sky.
Continuity mistake: When Bugs starts the engine of the plane, you can see he has a pilot's hat on his head. But when the plane starts moving, we cut to Bugs in the cockpit and he is no longer wearing his hat.