In the summer issue, Bale celebrates the work of the late Heath Ledger, his once co-star in the upcoming film, "The Dark Knight".

Bale said, "He was incredibly intense in his performance but incredibly mellow and laid-back. Certainly there was this great anarchistic streak to it just getting dirtier than anybody's envisioned the Joker before. ... Naturally, (the movie) was something I wanted to share with him and expected to do so. And I can't do anything else but hope that it will be an absolutely appropriate celebration of his work."

To read the full interview, visit Details.com.