Marvel movie pulled in £9.3 million in the UK over opening weekend

New plot details of the sequel to Dr Strange have emerged.

The film, which topped the UK box office over the weekend, pulling in 9.3 million, already has several ideas on the table for the follow up.

Director Scott Derrickson, says he wants to introduce the character Nightmare, a supervillain who first appeared in the Strange Tales comics in 1963.

Nightmare is the demonic ruler of the Dream Dimension who rides around on his horse Dreamstalker.

“I really like the character of Nightmare and the concept that the Nightmare Realm is a dimension”, Derrickson told IGN. “That’s early – that’s like the first Strange tale. I think that’s in the introductory episode of Doctor Strange, and I always loved that.”

In the comics, he is depicted as being white with green hair and a ragged cape, and in one tale he attempts to torment Strange when the latter forgets to recite a spell before sleep.

“We decided not to do that because that’s a bit of a complex idea to try to introduce everything we do introduce, and introduce the idea of nightmares themselves as being a dimension”, Derrickson added. “I hope somewhere down the line we do get to explore that because I think that’s a super cool concept.”

No release date has yet been set for the sequel but Dr Strange is expected to appear in the forthcoming Avengers: Infinity War in 2018.

Meanwhile, actress Tilda Swinton recently hinted that she is keen to star in her own Doctor Strange spin-off film.

The Oscar-winning star plays the Ancient One, a Celtic mystic who serves as mentor to Benedict Cumberbatch’s title character, in the new Marvel movie.

Asked about her character’s mysterious backstory, Swinton said: “I’m pretty confidently dropping hints in [Marvel boss] Kevin Feige’s ear about a prequel, I’m constantly harassing him about that. I don’t know if it’ll get anywhere.”

Asked to clarify what she means by “hints”, the actress added with a laugh: “Just leaving the odd hint. Writing the odd note and putting it in his pocket. Writing lipstick messages in his mirror. Just seeing how far we get.”