Answer: Finding Nemo
The recipe for DVD sales success is definitely one part fish, one part animation, and a healthy dose of humor topped off with an emotional plot of loss and reunited family, if the box office records and DVD sales of 2003’s computer-animated success Finding Nemo are any indicator.
In the first two weeks after it was released, consumers snatched up over two million copies of Finding Nemo. The intervening decade and a half has done little to cool children’s love of the film, as many parents can attest to, and it remains a strong seller in both DVD and Blu-ray formats.
Despite the release of other popular and briskly selling titles (Frozen sold 3.2 million DVDs and Blu-rays on its release day), the combination of other formats such as Blu-ray and digital downloads combined with overall decreasing DVD sales will likely ensure that Finding Nemo remains the best selling DVD of all time.
Source = “https://www.howtogeek.com/trivia/the-best-selling-dvd-of-all-time-is/”