which films are those?
"The Dark Knight Returns" is one of them
Batman
Frank Miller's limited series "The Dark Knight Returns" (February–June 1986) returned the character to his darker roots, both in atmosphere and tone. 
who has played batman in all the movies Michael Keaton,  Val Kilmer, George Clooney to name a few what is 'batman in film'? The fictional superhero Batman, who appears in American comic books published by DC Comics in what other forms of media can you find this fictional hero? Newspaper syndicated comic strips, books, radio dramas, television, a stage show, and several theatrical feature films
wiki:1627902
Batman [SEP] "The Dark Knight Returns"
Frank Miller's limited series "The Dark Knight Returns" (February–June 1986) returned the character to his darker roots, both in atmosphere and tone. The comic book, which tells the story of a 55-year-old Batman coming out of retirement in a possible future, reinvigorated interest in the character. "The Dark Knight Returns" was a financial success and has since become one of the medium's most noted touchstones. The series also sparked a major resurgence in the character's popularity. That year Dennis O'Neil took over as editor of the Batman titles and set the template for the portrayal of Batman following DC's status quo-altering miniseries "Crisis on Infinite Earths".