David Lynch's magical mystery tour across Sierra Bonita West Courtyard

(1) Betty and Rita enter SB West-Courtyard by the door of that bungalow opposite #12
Flaw: How did they get there first? There's no passage nearby.

(2) They head right. Notice the stone pillar A.

(3) Now they arrive at the main path. There's a gate in the back. Beyond that we can see cars passing by. Betty is looking at straight angle to #12.
Flaw: She doesn't recognize the number sign that is clearly readable. Watch (10)

(4) Both turn left and head down the way. Note: There sits an orange bulb in that socket of 
pillar B.

(5) They're passing by this door. While Betty and Rita are walking downwards, the camera movement is incorrespondingly upwards. 

(6) A look back where they came from.

Flaw: Pillar A of (2) is gone. We now see it covered by a mysterious bush. Likely a replaces requisite.

(7) The girls arrive and turn around at the bungalow opposite #17. Compare it's mirrored front shape with (17)

Flaw: There's no number sign attached to the wooden column as it has #17. Reason: Apt # at Sierra Bonita are originally written this way

(8) We are thrown over across the courtyard - suddenly bungalow #12 comes into sight.

(9) So Betty and Rita have found number #12. Did they really?
Flaw: No, to our surprise we see them now fronting #17. Compare with (16)

(10) We are back at the real location. From her viewpoint Rita can easily read the number sign as could have Betty from angle (3).

(11) Behind Rita we see the doorway of that bungalow, where both "sightlessly" started out their quest for #12. 

(12) "She's in 17. That's down at the end on the left." A correct description - Betty and Rita leave #12 with mixed emotions.
Flaw: This time the stone pillar B behind Betty is missing the bulb. Compare with (4). Possible reason: Shot at different time.

(13) Our protagonists are walking down the path towards #17.
A particular bungalow attracts their attention.

(14) It looks abandoned but the door light is still switched on.
Flaw: This shot is a retake of that bungalow seen in (5). This time it appears on the right longitudinal path.

(15) A few more steps until they reach #17...

...at last.

(16) "This is the apartment."
Actually they stop at the same spot, where they found #12.
Compare with (9)

(17) Betty tries the door. But stop - isn't there something wrong with the frontside compared to what we have seen  two seconds ago in (15)? Try to spot at least three differences...

(18) Well, seconds became months. Even the tall bush at the far left (15) lost all of its leaves by sudden. Probably another example of a bad mix-up of different takes.

- END -