Here is list of top 10 highest ranked movies of all times, and the Box-office performance as rated by the IMDb.

Rank:   1          Rating:   9.2                     Votes:     819,932
The Shawshank Redemption is a 1994 American drama film written and directed by Frank Darabont and starring Tim Robbins and Morgan Freeman.
Budget: $25,000,000 (estimated)
Opening Weekend: $727,327 (USA) (25 September 1994) (33 Screens)
Gross: $58,500,000 (Worldwide)

Rank: 2              Rating: 9.2                Votes: 602,703
The Godfather is a 1972 American crime film directed by Francis Ford Coppola and produced by Albert S. Ruddy from a screenplay by Mario Puzo and Coppola.
Budget: $6,000,000 (estimated)
Opening Weekend: $302,393 (USA) (19 March 1972) (6 Screens)
Gross: $245,066,411 (Worldwide) (11 May 1997)

Rank:            3 Rating: 9.0                 Votes: 384,027
The Godfather Part II is a 1974 American crime epic that Francis Ford Coppola produced, directed, and co-wrote with Mario Puzo, starring Al Pacino, Robert Duvall, Diane Keaton, and Robert De Niro.
Budget: $13,000,000 (estimated)
Opening Weekend: $244,000 (USA)
Gross: $193,000,000 (Worldwide) (26 July 2012)

Rank: 4           Rating: 8.9                Votes: 641,750
Pulp Fiction is a 1994 American crime film directed by Quentin Tarantino, who co-wrote its screenplay with Roger Avary.
Budget: $8,000,000 (estimated)
Opening Weekend: $9,311,882 (USA) (14 October 1994)
Gross: $213,928,762 (Worldwide)

Rank: 5             Rating: 8.9                  Votes: 252,980
The Good, the Bad and the Ugly is a 1966 Italian epic Spaghetti western film directed by Sergio Leone, starring Clint Eastwood, Lee Van Cleef, and Eli Wallach in the title roles.
Budget: $1,200,000 (estimated)
Opening Weekend: $10,584 (Finland) (7 August 2003) (1 Screen)
Gross: $25,100,000 (USA) (5 August 2012)

Rank: 6               Rating: 8.9               Votes: 201,765
12 Angry Men is a 1957 American drama film adapted from a teleplay of the same name by Reginald Rose.
Budget:  $350,000 (estimated)

Rank: 7              Rating: 8.9           Votes: 427,124
Schindler’s List is a 1993 film about Oskar Schindler, a German businessman who saved the lives of more than a thousand mostly Polish-Jewish refugees during the Holocaust by employing them in his factories.
Budget: $25,000,000 (estimated)
Opening Weekend: $656,636 (USA) (17 December 1993) (25 Screens)
Gross: $321,306,305 (Worldwide) (30 June 2012)

Rank: 8          Rating: 8.8             Votes: 796,602
The Dark Knight is a 2008 superhero film directed, produced, and co-written by Christopher Nolan. Based on the DC Comics character Batman, the film is the second part of Nolan’s Batman film series and a sequel to 2005’s Batman Begins.
Budget: $185,000,000 (estimated)
Opening Weekend: $158,411,483 (USA) (20 July 2008) (4366 Screens)
Gross: $1,001,921,825 (Worldwide) (1 December 2010)

Rank: 9                Rating: 8.8                 Votes: 580,715
The Lord of the Rings: The Return of the King is a 2003 epic fantasy-drama film directed by Peter Jackson that is based on the second and third volumes of J. R. R. Tolkien’s The Lord of the Rings.
Budget: $94,000,000 (estimated)
Opening Weekend: $72,629,713 (USA) (19 December 2003) (3703 Screens)
Gross: $1,119,929,521 (Worldwide) (25 November 2011)

Rank: 10                 Rating: 8.8                  Votes: 625,727
Fight Club is a 1999 American film based on the 1996 novel of the same name by Chuck Palahniuk. The film was directed by David Fincher and stars Edward Norton, Brad Pitt, and Helena Bonham Carter.
Budget: $63,000,000 (estimated)
Opening Weekend: $11,035,485 (USA) (17 October 1999) (1963 Screens)
Gross: $71,000,000 (Worldwide) (except USA)