The Wizard of Oz

Judy Garland found it difficult to be afraid of Margaret Hamilton, because she was such a nice lady off-camera.

After the Wizard gives the Scarecrow his diploma, he says, "The sum of the square roots of any 2 sides of an isosceles triangle is equal to the square root of the remaining side." This is a misstatement of the Pythagorean Theorem, which is, in fact, about right triangles and not isosceles ones. However, this statement is not true about any triangle, and so it is completely wrong.

Toto is listed in the end credits as being played by Toto, when he was actually played by a female dog named Terry.

From 1968 to 1984, on NBC-TV and CBS-TV airings of the film, the film was edited to sell more commercial time. As the amount of commercial time on network television gradually increased, more scenes were cut. According to film historian John Fricke, these cuts started with solely a long tracking shot of Munchkin Land after Dorothy arrives there. The rest of the film remained intact. Also according to Fricke, more wholesale cutting of the film took place when CBS regained the TV rights in 1975. By the 1980s, the other excised shots included: the film's dedication in the opening credits, continuity shots of Dorothy and Toto running from the farm, establishing shots of the cyclone, the aforementioned tracking sequence in Munchkin Land, the establishing shot of the poppy field, and tiny bits and pieces of the trip to the Wicked Witch's castle. CBS, which had shown the uncut version of the film in 1956, and again from the films first telecast until 1968, finally started to show it uncut again beginning in 1985, by time-compressing it. Network airings in the 1990s were uncut and not time-compressed; the film aired in a 2-hour, 10-minute time period.

Edited into Chain Lightning (1950)