When The Three Stooges first drive onto the Columbia Pictures lot, a line appears onscreen that says, "Columbia Pictures, 1934". However, several cars from the late 1930s and early 1940s can be seen parked on the lot or driving by.
The conversation between Moe Howard and Larry Fine in front of Shemp Howard's tombstone could have never taken place, since he has no stone. He is buried in a mausoleum.