In reality Robert Eugene Otto (Gene) kept Robert by his side until his death in 1974. It is rumored that Otto's wife, Anne, was driven insane by her husband's lifelong devotion to the doll.

In the real life case Robert Eugene Otto (Gene) was first given Robert the Doll in 1906, when he was just six years old, by an angry Bahamian servant with an interest in black magic and voodoo. It was rumored that the gift was the servant's revenge for being mistreated by the Otto family.

Visitors to the East Martello Museum in Key West where Robert is now on display must ask for the doll's permission before taking a photograph. Anyone who chooses to take a picture without the doll's permission will apparently be cursed for all eternity. There are numerous letters displayed on the wall of the museum from people asking Robert to remove the curse he placed on them. Note: The doll used in the movie is NOT the doll on display in Key West.

Robert the Doll was allegedly the inspiration for Chucky, the doll featured in the horror film series Child's Play.

The real life Robert the Doll is now located at the East Martello Museum in Key West, Florida, USA. The doll is annually rotated to the Old Post Office and Customhouse in Key West during the month of October. Note: The doll used in the movie is NOT the doll on display in Key West.

In the real life case the first name of the young child depicted in this film was actually Robert. The child named the doll Robert and insisted everyone refer to him by his middle name Eugene or Gene.

Robert Eugene Otto, the 10-year-old depicted in this film as the character Gene, later went on to become a well known artist and author in Key West, Florida, USA.

In various forms of media Robert has been referred to by a number of different names including Robert the Haunted Doll, Robert the Evil Doll, Robert the Possessed Doll and Robert the Enchanted Doll. All of these were considered as titles for the film.

Robert the Doll and The Artist House, where the story the film is based on took place, have been featured in various American TV shows including The Discovery Channel "Would you Believe It", William Shatner's "Weird or What" as well as the Travel Channel's "Mysteries at the Museum".

In Spanish territories the film is known as both "Roberto el muñeco del terror" (Robert the Terror Doll) and "Roberto el muñeco poseido" (Robert the Possessed Doll).

Filmed on location in Saundersfoot and Swansea in Wales, UK.

The real Otto family lived in a mansion at the corner of Eaton and Simonton streets in Key West, Florida, now known as the Artist House. In 1978 the Artist House was converted into a Hotel.

As of 2019 the film has spawned four sequels: 'The Curse of Robert the Doll', 'Robert and the Toymaker', 'The Revenge of Robert the Doll' and 'Robert Reborn'.

In the UK the film opened at #30 in the National DVD and Blu Ray charts, the only independent film to appear in the Top 40 that week.

In Germany the film was released in 3D and re-titled "Robert - die Puppe des Teufels" (Robert - The Doll of the Devil).

The opening crawl, added at the request of the distributors to emphasize the True Story aspect of the film, reads: "The film which you are about to see is based on the tragic real life events which befell a family after a strange doll called Robert entered their lives. Wherever Robert goes, death and destruction follows. Some call it coincidence, others claim the supernatural events attributed to Robert are a fabrication of troubled minds. Many people believe Robert to be the Most Haunted Doll in the World. Whatever the truth may be, Robert the doll has gained a legendary and fearsome reputation. Robert is now located at the East Martello Museum in Key West, Florida. Staff and visitors to the Museum have reported numerous unusual events since Robert's arrival."