The note that Martin showed to the defendant was not the same note he later also showed to Devlin.
When Claudia meets Martin at the hotel, her stockings are almost completely torn, and she is virtually barefoot. Later as she leaves to go to the bathroom, her stockings are intact.
Claudia's pants change from blue jeans to black leggings in the final sequence from when she meets Martin on the dock, to when they are walking to the restaurant.
In the opening shot of Martin Rose rowing along the Thames, his outfit changes completely, from the medium distance shot (all blue, white stripes down his sides) to the close up shot (white jersey, blue arm stripe, under a short sleeved blue top).
When Martin and Claudia walk next to the train on their way to take Farroukh to court, the time reflected in the train's window is 12:23:51. Two shots later the closed circuit TV footage shows the time to be 08:33:01.