The Muppets have been an integral part of popular culture since 1955 and have continued to match up against some of the finest human comedians. While the characters are humorous in their own right, many fans appreciate it when the creatures parody other hit moments, such as popular movies or music videos. As such, Jim Henson's prized creations prove that even the silliest of puppets can become hit movie stars.

Although The Muppet Show managed to make bold moves on primetime television, the franchise also made an impact on the silver screen. From The Muppet Movie in 1979 to the more recent Muppets Haunted Mansion, these films showcase the franchise's unique qualities in their best form. Yet, a canceled Muppets project from 1999 may have helped the franchise get out of its slump a lot sooner.

When Muppets Attack! Focuses on the Importance of Kermit Image via Disney

When most people think of The Muppets,...