When I saw The Empire Strikes Back in recent times, I discovered something that I had never noticed as a kid, nor a teenager. I notice that the film has a couple of early signs that Darth Vader/Anakin Skywalker is Luke's father.
Meaning the film hinted that Darth Vader is his father, as I mentioned throughout the first half of the original Star Wars trilogy.
These parts were early signs of the latter, even before we got a shocking twist scene with Luke and Darth Vader when Luke was defeated.
1.
In Star Wars: Episode IV - A New Hope, after Luke and Owen had an argument over Obi-Wan's whereabouts, Beru states that Luke was not just a father, but rather had too much of his father in him.
This scene marks the early signs of Vader's father twist in The Empire Strikes Back began.
2.
At Obi-Wan's home, Luke asks if he had fought in the Clone Wars, to which he confirms indeed that he was once a Jedi Knight with his "father". He said that his "father" used to be a "pupil of mine" until he turned evil, before concluding that he betrayed and murdered his father, foreshadowing Luke's wrong answer to Vader. However, he did not tell him that Darth Vader was his father.
3.
At the conversation scene with Darth Vader and Emperor Palpatine, Palpatine reveals that the new emeny, Luke Skywalker, who is the "son of Skywalker", and tells Vader that he must not become a Jedi.
4.
During Luke and Yoda's chat at his house, Yoda says, "For Jedi was he. Powerful Jedi." Luke responded, "How could you know my father? You don't even know who I am."
5.
After Luke Skywalker defeats the hallucination of Darth Vader in the Dark Side cave, a decapitation head of Vader bursts, revealing Luke Skywalker on the inside, and an obvious hint for Luke and Vader's relationship.
So overall, I believe I found two scene with hidden spots that Darth Vader is Luke's father. What do you think?
If any more to come, let me know the comments.