Goofs and Nitpick
Supposing this occurred at 20,000+ feet, when Kal-El rips open Lex's plane, the depressurization would have suffocated anyone aboard in a matter of seconds.
The last name that Lois suggests for "Krypto" is the dog's real name - Bud.
Among the "Canada-isms," when they were in the streets of Metropolis, there was a TD Waterhouse in the background. Toronto Dominion Bank doesn't have a branch in Kansas. Also at one point a Canadian postal truck (easily identified by its red color) drove by going the other direction.
Anything resembling a decent computer security system conceals the password with asterisks.
The number 257 can clearly be seen on the door of Dr. Sinclair's hospital room. Yet when the staff responds to the emergency we can hear someone saying "Code Blue in room 213!"
Several times Rosenbaum and Glover mispronounce Luth-OR as Luth-ER.
Lex's sword is a right-handed epee, while he is left-handed.
When Lex starts dueling with his father he is wearing one glove on his left hand. During the course of this fight, the glove disappears and reappears several times.
During the scene of the end of the commencement ceremony, Clark's shirt alternates between dry and dampened by raindrops from shot to shot.
Goofs and Nitpicks are courtesy of Tvtome.com.