The Harry Potter movies vary in length, with the shortest film being "Harry Potter and the Sorcerer's Stone" at around 2 hours and 32 minutes, and the longest film being "Harry Potter and the Deathly Hallows – Part 2" at around 2 hours and 10 minutes. On average, the Harry Potter movies are around 2 hours and 30 minutes long. **

There are a total of 8 Harry Potter movies. The series is based on the seven books written by J.K. Rowling and was adapted into a film franchise. The movies follow the journey of Harry Potter, a young wizard, as he attends Hogwarts School of Witchcraft and Wizardry and battles the dark wizard Lord Voldemort. **

Daniel Radcliffe plays Harry Potter in the movies. He portrayed the character in all eight films of the Harry Potter series, based on the books by J.K. Rowling. Radcliffe's portrayal of the iconic character has been widely praised by fans and critics alike. **

Deleted scenes can be found in several of the Harry Potter movies. Some of the movies that contain deleted scenes include "Harry Potter and the Sorcerer's Stone," "Harry Potter and the Chamber of Secrets," "Harry Potter and the Prisoner of Azkaban," "Harry Potter and the Goblet of Fire," "Harry Potter and the Order of the Phoenix," "Harry Potter and the Half-Blood Prince," and "Harry Potter and the Deathly Hallows – Part 1 and Part 2." These deleted scenes are often included in special edition DVD releases or can be found online. **

Some movies that are similar to Harry Potter in terms of their magical and fantastical elements include "The Chronicles of Narnia" series, "Percy Jackson & the Olympians" series, and "Fantastic Beasts and Where to Find Them." These movies also feature young protagonists discovering their magical abilities and embarking on epic adventures in mystical worlds. Additionally, "The Lord of the Rings" series shares similarities with Harry Potter in terms of its epic storytelling and fantastical elements, although it is more focused on a different type of fantasy world. **

I would recommend all of the Harry Potter movies as they are all part of a cohesive and engaging story. However, if I had to choose, I would recommend starting with "Harry Potter and the Sorcerer's Stone" to introduce the magical world and characters, and then watching the entire series in order to fully appreciate the character development and overarching plot. Each movie offers its own unique blend of adventure, friendship, and magic, making the entire series a must-watch for any fan of fantasy and adventure. **

The main difference between the Harry Potter movies and the books is the level of detail. The books provide a much more in-depth look at the characters, their thoughts, and the magical world they inhabit. The movies, on the other hand, condense the story and often omit certain subplots and details due to time constraints. Additionally, the visual effects in the movies bring the magical elements to life in a way that the books cannot. Overall, while both the movies and the books tell the same story, they offer different experiences for fans of the series. **

Some similar movies to Harry Potter include "Percy Jackson and the Olympians," which follows a young boy with special powers discovering a hidden world of mythology; "The Chronicles of Narnia," which features children entering a magical world and facing epic battles; and "The Spiderwick Chronicles," where siblings uncover a hidden realm filled with magical creatures. These movies all involve young protagonists discovering hidden worlds and facing challenges with the help of magical elements. **