Al Kaplan - Miami, FL , Dec 24, 2002; 09:15 a.m.
Film, NO! Paper, maybe. Take a sheet out of the box in total darkness, or with a known safe safelight, turn on your amber bulb for about 10 minutes, and then process the paper. Put a few coins on the paper while it's sitting out. Even if the safelight is almost safe you'll see the coin shadows when you develop it.
B&W film can stand a few seconds to a VERY dim green light for "developing by inspection".