"A Nightmare on Elm Street" can be streamed on HBO Max. The first movie in the franchise is available on Amazon, YouTube, and Vudu for rent or purchase. It can also be streamed on Max and Prime Video. The movie is also available to stream for free on Fawesome. To watch the entire franchise, HBO Max is the best option as it has most of the movies available for streaming. The fourth movie in the franchise is not available on any subscription services at the moment, but it can be rented or purchased from digital retailers like Vudu. Below is a list of where to watch each movie in the franchise:

• "A Nightmare on Elm Street" (1984): HBO Max, Amazon, YouTube, Vudu
• "A Nightmare on Elm Street 2: Freddys Revenge" (1985): HBO Max, Amazon, YouTube, Vudu
• "A Nightmare on Elm Street 3: Dream Warriors" (1987): HBO Max, Amazon, YouTube, Vudu
• "A Nightmare on Elm Street 4: The Dream Master" (1988): Not available on subscription services, but can be rented or purchased from digital retailers like Vudu
• "A Nightmare on Elm Street 5: The Dream Child" (1989): HBO Max, Amazon, YouTube, Vudu
• "Freddys Dead: The Final Nightmare" (1991): HBO Max, Amazon, YouTube, Vudu
• "Wes Cravens New Nightmare" (1994): HBO Max, Amazon, YouTube, Vudu
• "Freddy vs. Jason" (2003): HBO Max, Amazon, YouTube, Vudu
• "A Nightmare on Elm Street" (2010): HBO Max, Amazon, YouTube, Vudu

It is important to note that HBO Max is a subscription service that costs $10 per month.