Rose Tyler's hairstyle changes from shot to shot when she is discussing being 'the last human' with Cassandra. Rose's hair is in one style for the long shots, and another style for the close-ups.
As the room that Rose is in gets scorched by the blazing sun, the level of burning is above her head in close up shots, but at Rose's shoulder level on wide shots.
When the Doctor is 'fixing' Rose's mobile, he takes the back panel off. When he hands the mobile back to Rose, the back panel is re-attached.
Rose and Cassandra are shot intermittently from behind, looking out of the Space Station window; from behind Cassandra's lips do not move at all, though we still hear her speak.