Sim, quando ele fala com Luke em Return of the Jedi :

De acordo com o wikiquote , o diálogo era:

Obi-wan: Luke, you're going to find that many of the truths we cling to depend greatly on our own point of view. Anakin was a good friend. When I first knew him, your father was already a great pilot. But I was amazed how strongly the Force was with him. I took it upon myself to train him as a Jedi. I thought that I could instruct him just as well as Yoda. I was wrong.

No entanto, de acordo com o IMDB :

Obi-Wan: Luke, you're going to find that many of the truths we cling to depend greatly on our own point of view. What happened to your father was my fault... from a certain point of view. Anakin was a good friend. When I first met him, your father was already a great pilot. But I was amazed how strongly the Force was with him. I took it upon myself to train him as a Jedi. I thought that I could instruct him just as well as Yoda. I was wrong. During the Clone Wars, it wasn't long before the Emperor sensed Anakin's powers and lured him to the Dark Side.

Esta parece ser uma versão da troca que estava no 3º rascunho (também aqui como Vingança dos Jedi ), que tem uma versão diferente do diálogo:

Obi-Wan: I don't blame you for being angry. If I was wrong in what I did, it certainly wouldn't have been for the first time. You see, what happened to your father was my fault.

[Pause]

Obi-Wan: Anakin was a good friend.

[Pause]

Obi-Wan: When I first knew him, your father was already a great pilot. But I was amazed how strongly the Force was with him. I took it upon myself to train him as a Jedi. I thought that I could instruct him just as well as Yoda. I was wrong. My pride has had terrible consequences for the galaxy.

Lendas de Star Wars

No romance Kenobi de John Jackson Miller, Obi-Wan tem essas reflexões sobre Anakin:

No prólogo:

I still can't believe the Jedi Order is gone and the Republic, corrupted and in the hands of Palpatine. And Anakin, corrupted as well. The holovids I saw of him slaughtering the Jedi younglings in the Temple still haunt my dreams, and shatter my heart into pieces, over and over again.

No Capítulo 13:

It's not like I'm going to suddenly get my friends back. It's not like I'm going to feel any better about what I had to do to poor Anakin. It's not like..

No Capítulo 40:

Anakin had flaws of his own. Flaws I failed to see, that I didn't prepare him to deal with. But the Emperor played a role. I don't know if it would have been possible to isolate Anakin from his influence. I tried, but too late.