Marvel’s casting department cannot be beat. Literally all of the actors are their characters.
Sarah Halley Finn, casting director for Iron Man, Iron Man 2, Thor, Captain America, The Avengers, Iron Man 3, Thor: Dark World, Captain America: Winter Soldier, Agents of SHIELD, Guardians of the Galaxy, Avengers: Age of Ultron, Ant-Man, and every single Marvel one-shot. All hail the queen.
A series of Animated GIFs excerpted from Meaning of Pi (1949). The video Explains how pi denotes the ratio of a circle to its diameter, shows the use of circles in art, industry and commerce, outlines a procedure by which the numerical value of pi can be checked and reviewed, and describes the discovery and importance of pi.