as a reference librarian, i feel like i SHOULD know the answer to this right off the top of my head, but my cpu seems to have suffered a RAM crash: i got a call yesterday from a fellow who's looking to find out what films are in the public domain so that he may use images from them in a corporate presentation. do any of my estimable screen-ellers know of a printed source for such things, or should i count on the fact that films 56 years old, and older (the "28+28" copyright renewal), are safe to cull from without obtaining permission from the copyright holder? perspiring minds want to know. to save bandwidth, i invite you to send answers to me, rather than to the list. thanks. larry schwartz, theatre/film librarian, southern meth u, dallas(?), texas(??)