The teakettle starts to whistle after Emma and Steed enter the shop. But when they enter the kitchen a few seconds later the entire room is full of steam (also compare the size of the kettle with the amount of steam).
When Steed climbs out the window, he begins inching along the edge before he stands completely upright.
Rhodes' Austin Cambridge has the brand name on the tailgate when first seen and in the accident, but the tailgate has nothing on it at the wrecking yard.
When Rhodes' car is first seen and in the accident the brand name "Austin Cambridge" is on the tailgate, but in the wrecking yard the tailgate is blank.
The view outside the Lithoff office is flat, and clearly a photograph.