The white muslin frock with red patterned overdress worn by Eleanor Methven as Mrs. Lefroy is the same one Brenda Blethyn as Mrs. Bennet wears in Pride & Prejudice (2005) in the Meryton scene when the Bennets learn that Mr. Bingley has returned to Netherfield Hall.
The yellow muslin gown with white ruffle at the neckline that Jessica Ashworth as Lucy Lefroy wears is the same gown worn by Carey Mulligan as Kitty Bennet in Pride & Prejudice (2005). Mulligan wears it in the scene at Longbourn when Mr. Gardiner's letter arrives.
When Jane and Tom are speaking in the woods, as she is retreating you see Tom's profile as he is turning towards her. His mouth moves in what can be discerned as words, but he actually begins to speak once the shot changes to his full face.
When Jane and Tom are walking toward the boxing match, a blond soldier dressed in a red uniform walks in front of them smiling then passes towards the fight. A couple of seconds later, Jane and Tom have barely taken a few steps and the same character is repeated but they are not saying the same things.