This person is watching all six Star Wars movies at the same time on their computer. They’ve found some interesting coincidences. The site is not finished just yet, but it is amusing.
I’ve been looking forward to the opportunity of doing this with the six DVDs for years! …The “Star Wars Ring Cycle,” basically. One element that I would try to focus on in that context is John Williams’ music, with its emphasis on thematic, signature motifs (like that teaser bit of Princess Leia’s theme at the end of Ep. III). Stock up on junk food in advance, disconnect the phone, draw the curtains, and don’t ever cop to doing this to anyone you know IRL.
I think it’s going to have to wait until the end of football season, though. 
Whoops, my mistake. What this guy’s undertaking is even better! I suspect the coincidences he’s finding are basically just that, though – just coincidences, reflecting the similar set of plot points, characters, dialogue elements and settings that get used and re-used throughout the series.
OTOH, if he discovers that the line “I have a bad feeling about this” coincides in all six, well, that really would be something. 
I like how Anakin wakes up from his nightmare in episode 2 at the same time the Death Star fires on Alderaan. I feel a great disturbance in the force…
Haha, the video that shows the fight with Dooku in ROTS coinciding with the awful “Jedi Rocks” song in ROTJ is awesome.