Late in the movie, after the "drunken fight" scene when Edith Lambert says, "it's not true" to Harry Lambert, a portable phonograph (record player) sitting on a table alternates between being crooked on the table, and being aligned with the table edge.
During Harry Lambert's "daydream sequence" his now-teenage son runs into the house with a football and knocks Harry Lambert's chair over, with Harry still sitting in the chair. During this film stunt, the stuntman's face is clearly visible.