In the movie they say that once the cup crosses the seal it is basically all destroyed and broken. Meaning no eternal life. He was able to heal his father before the lady crosses it with the cup(sorry cant recall the name). When the cup was taken and then crossed over the seal, which basically made the temple self destruct as the dramatic scene of the knight waving goodbye plays out and that's when the 'invincibility spell' was broken.

So yes, Indiana Jone's father did die and no he was not immortal.

Also the reason why the knight was there was to protect the grail not necessarily to live forever...because who would want to sit in a dark musty old grave for the rest of their life?(also in the movie they state that one knight still lives to protect the grail)

In the movie they say that once the cup crosses the seal it is basically all destroyed and broken. Meaning no eternal life. He was able to heal his father before Elsa crossed it with the cup. 

When the cup was taken and then crossed over the seal, it basically made the temple self-destruct as the dramatic scene of the knight waving goodbye plays out and that's when the 'invincibility spell' was broken.

So yes, Indiana Jones' father did die and no, he was not immortal.

Also the reason why the knight was there was to protect the Grail not necessarily to live forever... Because who would want to sit in a dark musty old grave for the rest of their life?  (also in the movie they state that one knight still lives to protect the Grail)

In the movie they say that once the cup crosses the seal it is basically all destroyed and broken. Meaning no eternal life. He was able to heal his father before the lady crosses it with the cup(sorry cant recall the name). When the cup was taken and then crossed over the seal, which basically made the temple self destruct as the dramatic scene of the knight waving goodbye plays out and that's when the 'invincibility spell' was broken.

So yes, Indiana Jone's father did die and no he was not immortal.

In the movie they say that once the cup crosses the seal it is basically all destroyed and broken. Meaning no eternal life. He was able to heal his father before the lady crosses it with the cup(sorry cant recall the name). When the cup was taken and then crossed over the seal, which basically made the temple self destruct as the dramatic scene of the knight waving goodbye plays out and that's when the 'invincibility spell' was broken.

So yes, Indiana Jone's father did die and no he was not immortal.

Also the reason why the knight was there was to protect the grail not necessarily to live forever...because who would want to sit in a dark musty old grave for the rest of their life?(also in the movie they state that one knight still lives to protect the grail)