More top-secret movie information has been revealed in the wake of the Sony cyber-attack - this time about Spider-Man.

Emails sent between execs at Sony and Marvel reveal that the movie houses had considered teaming up for an animated Spider-Man comedy - and even having the web-slinger show up in 2016's Captain America: Civil War.

The emails were sent by Sony motion picture chief Amy Pascal, and included correspondences with Sony CEO Kaz Hirai and Disney CEO Bob Iger, according to The Wall Street Journal.

One of the messages, sent on 30 October from Sony Pictures president Doug Belgrad to Pascal, discussed a potential scenario that would see Marvel produce a new trilogy of Spider-Man movies while Sony "retains creative control, marketing and distribution".

In a separate email, Pascal tells a business partner that Marvel wanted to include Spider-Man in Captain America: Civil War. As comic-book fans will know, Spider-Man plays a key role in the 2006 comic book storyline Civil War.

Many dedicated fans have called for Marvel, which produces the blockbusters Avengers and Iron Man, to take back control of Spider-Man from Sony, which has a long-term license.

Discussions for a Spider-Man trilogy have since reportedly broken down but an animated Spider-Man comedy, produced by Phil Lord and Chris Miller of The Lego Movie, could still be in the works.