A pretty interesting article came out from Entertainment Weekly (link here) recently in which Chris O'Donnell and Alicia Silverstone, while promoting their new projects, looked back at the making and immediate aftermath of Batman & Robin.
Both are pretty honest about their experiences and the film's shortcomings. Silverstone's comments are more to do with the filming and getting in to the costumes. Both of which sound bewildering.
Chris O'Donnell's are more about the critical drubbing the film received. I've got to say as an actor it must be tough when a film is critically panned but you still have to go out and promote it like it's the best thing ever. O'Donnell sounds like he handled it well and has come to accept the film was still "fun to be a part of". I guess he ultimately found his feet in the NCIS: LA TV show and doesn't have to worry about past failures,
But it's sad to hear him say that Joel "was so heartbroken and kind of bummed out about it".
In this podcast episode Drew Griffin goes through the article (and comments) and gives us his thoughts on it all.