Is The Avengers and Assemble the same movie?

No, "The Avengers" and "Assemble" are not the same movie.

"The Avengers" is the title of the 2012 superhero film, part of the Marvel Cinematic Universe (MCU).

"Assemble" is a phrase commonly used by the Avengers, often as a rallying cry before they go into action. It's not a specific movie title.