While the Ice Age franchise’s migration from spring to a more competitive summer might be bandied about as a reason for Dawn of the Dinosaurs’ relatively more glacial reception, the picture suffered from looking like more of the same in its marketing campaign. No compelling reason was presented to make it as big a theatrical event as The Meltdown, and the proceedings may have been confounded by the anachronistic inclusion of dinosaurs, which were seemingly intended as a shortcut to audience expansion.
— Box Office Mojo’s Brandon Gray, in his report of Independence Day weekend returns (July 3-5, 2009).
Ice Age: Dawn of the Dinosaurs grossed $41,690,382 during the weekend and $66,732,868 in its first five days, compared to an opening weekend gross of $68,033,544 for Ice Age 2: The Meltdown from Mar. 31-Apr. 2, 2006.