Robert James Waller finished his manuscript in eleven days, intending it to be simply a gift for various friends and family. One of his friends was so impressed with the manuscript, he asked if he could try to interest a literary agent in the work. Waller later received a life-changing call from a New York agent who asked, "...Robert, where have you been all my life?"
When Francesca is driving with him in his truck to initially show him where the bridge is, there is no sunshine on Robert's shoulders. Suddenly, in the next shot it's on his right shoulder, then the next shot switches to his left and then back again.
Near the beginning of the movie a banker is depicted at the farm house having brought a safe deposit box with him to the house. This would never happen, safe deposit boxes never leave the general area of the bank vault and the banker would not have access to the box anyway. (Also, the term is NOT "safety deposit." The proper term is SAFE Deposit - the box-holder DEPOSITS their belongings in a SAFE).