I must state for the record that Jack did not tell me directly who his character was in "Superman Returns", but when I guessed it, he admitted that I'd guessed correctly. I was able to piece it together from things mentioned to me by Bryan Singer, things I'd seen on-set down in Sydney when they were filming on the street, and from the small bits of information Jack mentioned. Jack Larson is playing the part of Bibbo in "Superman Returns". For those unfamiliar with Bibbo, he's a character that has appeared both in the comics and in "Superman: The Animated Series". He's a friend of Supermans, and owner of the Ace O' Clubs tavern/bar.
With the movie script tucked away safely in his hotel bedroom, Jack told me that he was impressed with the script so far (only having had it handed to him that day). He was happy with the various short sequences in which his character was involved, finding them well written and interesting. Overall, he said he was impressed with the story line of the movie.
Earlier in the day Jack had been taken to the Fox Studios set and was introduced to the cast and crew. Having known Bryan Singer for a few years, and being a fan of his work, Jack was introduced to Brandon Routh and the other cast members, especially young Sam Huntington who is playing Jimmy Olsen, the role Jack himself made famous in the 1950s. Jack made special mention of Kate Bosworth (Lois Lane), stating how he thought she was an exceptionally attractive woman with a classic beauty about her. He compared he to come of the classic Hollywood starlets of years gone by.
Jack was impressed with all the cast, and mentioned that they had been filming a scene on the roof of the Daily Planet building that day. He was also interviewed on camera, and said that the footage was to be used in the DVD of "Superman Returns".